# The Marconi scientists' deaths, 1982–1990 > Between 1982 and 1990 some twenty-five people with links to British defence work, eight of them GEC-Marconi staff, died or vanished in ways the press… Source: https://mysteriesdept.com/mysteries/marconi-scientists Publisher: Mysteries Department Licence: CC BY 4.0 (credit Mysteries Department and link the page) Updated: 2026-11-03T21:21:55+00:00 --- **MYS** 0DGG4XJWG8C3·Mystery · event # The Marconi scientists' deaths, 1982–1990 **0** [Follow][Ask a question](https://mysteriesdept.com/questions/key-questions?mystery=marconi-scientists) The Marconi scientists' deaths, 1982–1990 People on the lists 27 named; 24 died 1982–1990 (2 killed by others), 3 not known to have died⁠[[11]] GEC staff among them 8 (Marconi companies and Easams)⁠[[11]] Span Keith Bowden, March 1982, to Jonathan Moyle, March 1990⁠[[3]] Verdicts on the best-documented cases Open: Dajibhai, Peapell, Sands, Wash; suicide: Sharif, Knight⁠[[12]] Solved Shani Warren: murder by Donald Robertson, convicted 17 May 2022⁠[[8]] Official inquiry Refused by the Ministry of Defence (31 March and 11 November 1988)⁠[[7]] Expected by chance About 32 suicides and open verdicts among GEC's UK graduates alone, 1982–1990; 8 GEC cases listed⁠[[9]] Status Unexplained Questions 0 of 12 answered Places [All 20](https://mysteriesdept.com/places?mystery=marconi-scientists) [**Bristol** City near which Ashad Sharif died on 28 October 1986](https://mysteriesdept.com/mysteries/marconi-scientists/places/PLC0DGGE5F0MFK6/bristol)[**Royal Military College of Science, Shrivenham** Army college (now the Defence Academy) where Peapell lectured, Brittan worked, Godley headed a unit, and Gooding and McGowan studied](https://mysteriesdept.com/mysteries/marconi-scientists/places/PLC0DGGE5F0TX3P/royal-military-college-of-science-shrivenham)[**Clifton Suspension Bridge, Bristol** Bridge over the Avon Gorge from which Vimal Dajibhai fell on 5 August 1986](https://mysteriesdept.com/mysteries/marconi-scientists/places/PLC0DGGE5F0KRPV/clifton-suspension-bridge-bristol)[**England** Where most of the GEC-Marconi and other British defence-industry deaths of 1982–1988 took place](https://mysteriesdept.com/records/PLC0DCR6HN5JPR9/england) Catalog key**MYS** 0DGG4XJWG8C3 In 1986 and 1987 a run of violent deaths among computer engineers at Marconi, the defence arm of the General Electric Company (GEC), became a national story in Britain⁠[[1]]⁠[[2]]. The list grew backwards to 1982 and forwards to 1990, reached about 25 names⁠[[3]], and was tied in print to the Sting Ray and Tigerfish torpedoes, Britain's part in the US Strategic Defense Initiative, and Soviet, American or British intelligence⁠[[4]]⁠[[5]]. MPs asked for an inquiry; the Ministry of Defence refused and called the deaths a coincidence⁠[[6]]⁠[[7]]. The record now looks different from the story. Fewer than a third of the 27 people named worked for GEC, three are not known to have died, and the case with the clearest signs of foul play, Shani Warren's, was solved in 2022 as a murder by a local sex offender⁠[[8]]. Ordinary suicide rates predict more deaths of these kinds among GEC's own scientists and engineers than the lists contain⁠[[9]]⁠[[10]]. What remains open is the individual cases, chiefly Dajibhai, Sands, Peapell and Wash, whose inquests left open verdicts and whose files have not been read. Of the 12 questions on this site, 0 are answered. ### Key questionsset by the editors [**Did any of the deaths share a common cause, such as killings by an intelligence service?** ](https://mysteriesdept.com/mysteries/marconi-scientists/questions/QST0DGG9JVJS6R7/did-any-of-the-deaths-share-a-common-cause-such-as-killings)No answer ahead yet [**Was the Ministry of Defence police fraud investigation into Marconi connected to the deaths?** ](https://mysteriesdept.com/mysteries/marconi-scientists/questions/QST0DGG9QBMA1DQ/was-the-ministry-of-defence-police-fraud-investigation-into)No answer ahead yet [**Were the people who died working on the same classified projects, such as Sting Ray, Tigerfish or the Strategic Defense Initiative?** ](https://mysteriesdept.com/mysteries/marconi-scientists/questions/QST0DGG9NEW2HG6/were-the-people-who-died-working-on-the-same-classified)No answer ahead yet [**Were there more deaths among British defence scientists and engineers in 1982–1990 than ordinary death rates would produce?** ](https://mysteriesdept.com/mysteries/marconi-scientists/questions/QST0DGG9HRA9QAX/were-there-more-deaths-among-british-defence-scientists-and)No answer ahead yet [**Which of the deaths remain unexplained after their inquests, and what would settle each one?** ](https://mysteriesdept.com/mysteries/marconi-scientists/questions/QST0DGG9P56CQK6/which-of-the-deaths-remain-unexplained-after-their-inquests)No answer ahead yet [**Who is on the list of "Marconi scientists", and how was the list put together?** ](https://mysteriesdept.com/mysteries/marconi-scientists/questions/QST0DGG9R1ZCZKX/who-is-on-the-list-of-marconi-scientists-and-how-was-the)No answer ahead yet [All 12 questions ](https://mysteriesdept.com/questions/key-questions?mystery=marconi-scientists) ### Research sessions1 so far · last 3 Nov `S-001`[The Marconi deaths: the record collected and the cluster tested](https://mysteriesdept.com/mysteries/marconi-scientists/sessions/SES0DGGH6FG4GHG/session-1-the-marconi-deaths-the-record-collected-and-the) 3 Nov **1** run **20** evidence**12** questions raisedNo question changed standing [All 1 sessions ](https://mysteriesdept.com/mysteries/marconi-scientists/sessions) ## What is known Twenty-seven people appear on the lists that circulate as "the Marconi scientists"⁠[[11]]⁠[[5]]⁠[[3]]. Twenty-four of them died between March 1982 and March 1990, two of them killed by others; three are not known to have died. Eight worked for GEC's Marconi companies or its sister firm Easams; the rest worked for Plessey, British Aerospace, ICL, British Telecom, the Atomic Energy Authority, the Ministry of Defence, the [Royal Military College of Science](https://mysteriesdept.com/mysteries/marconi-scientists/places/PLC0DGGE5F0TX3P/royal-military-college-of-science-shrivenham), a polytechnic, a university and a small firm later bought by GEC. The cases that made the story were three: Vimal Dajibhai, a Marconi Underwater Systems software engineer found below the [Clifton Suspension Bridge](https://mysteriesdept.com/mysteries/marconi-scientists/places/PLC0DGGE5F0KRPV/clifton-suspension-bridge-bristol) in August 1986 (open verdict); Ashad Sharif, a Marconi Defence Systems analyst found near [Bristol](https://mysteriesdept.com/mysteries/marconi-scientists/places/PLC0DGGE5F0MFK6/bristol) in October 1986 with a rope from a tree to his neck (suicide); and David Sands of Easams, who drove into an empty cafe with petrol cans in his boot in March 1987 (open verdict)⁠[[12]]⁠[[4]]⁠[[1]]. Peter Peapell of the Royal Military College of Science was found under his car in February 1987 (open verdict)⁠[[2]]; Trevor Knight of Marconi Space and Defence Systems in March 1988 (suicide)⁠[[13]]; Brigadier Peter Ferry, a Marconi marketing director, and Alistair Beckham of Plessey, both electrocuted, in August 1988⁠[[14]]⁠[[15]]. Every death went to a coroner. Police said the contested ones were investigated before and after their inquests⁠[[16]], and the Home Office found no link between the two Bristol deaths and Avtar Singh-Gida's disappearance⁠[[17]]. Singh-Gida was found alive in Paris; David Greenhalgh survived his fall⁠[[13]]. Shani Warren, found bound and gagged in [Taplow Lake](https://mysteriesdept.com/mysteries/marconi-scientists/places/PLC0DGGE5F0H98M/taplow-lake-buckinghamshire) in April 1987, was shown in 2022 to have been murdered by Donald Robertson, a local sex offender with no defence connection⁠[[8]]. ### Timeline **Timeline** Squeezed where little happened. Each mark is a published claim, by how it stands:AcceptedMost likelyStill possibleDisputedRuled out ## How the story grew Tony Collins of the weekly Computer News linked the two Bristol deaths in early 1987⁠[[1]]. After Sands died, the SDP's John Cartwright wrote to the defence procurement minister that four cases "stretch the possibility of mere coincidence too far"; the Home Secretary told the police forces to liaise, and the government called the deaths "odd" but declined an inquiry⁠[[18]]⁠[[2]]⁠[[19]]. Wire reports counted six by April 1987, eight by March 1988, thirteen by August 1988 and at least sixteen by October 1988⁠[[2]]⁠[[13]]⁠[[14]]⁠[[20]]. Labour's Doug Hoyle and Eric Deakins pressed ministers with written questions through 1987–1988⁠[[6]]⁠[[7]]. Collins's Open Verdict (1990) made it 25⁠[[3]]; a 1998 retrospective said 30⁠[[21]]; online lists from about 2005 fixed the version that circulates now, errors included⁠[[11]]. In 2026 the case was revived as a precedent for the list of missing American scientists. ## The explanations **Coincidence.** The government, the police and Marconi said the deaths were unconnected: separate people on separate projects for separate companies⁠[[1]]⁠[[19]]. This site's base-rate test supports it: at ordinary [England](https://mysteriesdept.com/records/PLC0DCR6HN5JPR9/england) and Wales suicide rates, GEC's 17,500 UK science and engineering graduates alone would produce about 32 suicides and open verdicts in 1982–1990, against 8 GEC cases on the lists⁠[[9]]⁠[[10]]. **Soviet-bloc killings.** Raised as a possibility in 1988 by a Cambridge counter-intelligence researcher, with the 1978 umbrella murder of Georgi Markov as precedent⁠[[4]]. No case has produced evidence of it, and the strongest foul-play case, Shani Warren's, turned out to be an ordinary sexual murder⁠[[8]]. **Western killings or cover-up.** Fed by the MoD's refusal to say what Brittan and Bowden did, its refusal of an inquiry and reports that MI5 looked at the deaths⁠[[22]]⁠[[7]]⁠[[19]]. Nothing released supports it, and nothing released rules it out. **Stress and the fraud inquiry.** Relatives spoke at inquests of long hours on defence contracts⁠[[14]], and the deaths came during an MoD police and Serious Fraud Office investigation of Marconi's [Portsmouth](https://mysteriesdept.com/mysteries/marconi-scientists/places/PLC0DGGE5F0ZVDR/portsmouth) companies⁠[[23]]⁠[[24]]. The MoD said none of the dead had been questioned in it⁠[[6]]. ### Published claims **Published claims and their status** | Year | Who | Claimed | Status | Reason | |---|---|---|---|---| | 1988 | Ministry of Defence⁠[19] | The deaths were investigated by police and coroners and are unconnected; links are "newspaper hype" | Accepted | Consistent with the base-rate test and the 2022 Warren conviction; the police reports themselves are unpublished⁠[19]⁠[7]. | | 1987 | John Cartwright MP⁠[1] | The four 1986–87 cases "stretch the possibility of mere coincidence too far" | Ruled out | Ordinary suicide rates in the workforces concerned predict more such deaths than the lists contain⁠[1]. | | 1987 | Tony Collins (Computer News)⁠[1] | The Marconi dead worked in the same narrow field of underwater simulation | Disputed | Marconi and the MoD denied any shared project; no programme is named in public sources⁠[1]⁠[27]. | | 1988 | Randall Heather (St Edmund's College, Cambridge)⁠[4] | The deaths may be "a very quiet type of terrorism" by the Soviet bloc | Disputed | No case has produced evidence of it, and the strongest foul-play case was an ordinary murder⁠[4]⁠[8]. | | 1988 | Sunday Times (US source)⁠[20] | The Pentagon wanted to review the cases because some of the dead worked on projects applicable to SDI | Still possible | The MoD told Parliament a month later that it had received no US inquiries⁠[20]⁠[7]. | | 1990 | Tony Collins⁠[3] | 25 deaths in the defence industry, most unexplained, with officialdom obstructing inquiry | Still possible | Of 27 people now on the lists, 15 verdicts rest only on the proponent list, 3 are not known to have died, and 1 was a solved murder unconnected to defence⁠[3]⁠[25]. | | 2005 | Popular retellings (Project Camelot list, The Unredacted, SOFREP)⁠[11] | Twenty-five GEC-Marconi scientists on Sting Ray and SDI projects died mysteriously | Ruled out | Fewer than a third of the people named were GEC staff⁠[11]⁠[28]⁠[29]. | | 2022 | Thames Valley Police / Crown Prosecution Service⁠[8] | Shani Warren was murdered by Donald Robertson | Accepted | Convicted at Reading Crown Court on DNA from the gag⁠[8]. | ## The literature The only book-length study is Tony Collins's Open Verdict: An Account of 25 Mysterious Deaths in the Defence Industry (Sphere, 1990)⁠[[3]], written by the journalist who first connected the cases; reviewers noted that not all 25 were Marconi staff and that Collins's common thread was electronic-warfare work⁠[[25]]. Not seen here. The contemporary record is mainly wire copy and features: the Los Angeles Times (Tyler Marshall, April 1987)⁠[[1]], Associated Press (Marcus Eliason, February 1988)⁠[[19]], the Chicago Tribune (Howard Witt, April 1988)⁠[[4]] and the Australian Financial Review (Peter Huck, December 1988)⁠[[15]]. British papers are cited but mostly unseen here: the Financial Times (April 1987)⁠[[26]], The Independent's editorial "Deaths which must be investigated" (August 1988), the Sunday Times's report of Pentagon interest (October 1988)⁠[[20]] and the Daily Telegraph's "Scientists' deaths 'not a plot'" (February 1989)⁠[[5]]. ABC's 20/20 broadcast "Grave Secrets" in May 1989⁠[[5]]. The parliamentary record is the firmest primary source: some thirty written answers from 1986 to 1990, which give employers, classifications and verdicts and refuse an inquiry⁠[[27]]⁠[[6]]⁠[[7]]. Later retellings (News Shopper 1998, The Unredacted 2018, SOFREP 2020, CrimeReads 2024) add nothing new and repeat the list's errors⁠[[21]]⁠[[28]]⁠[[29]]⁠[[30]]. Marconi's own press-cuttings file on the deaths, 1988–90, is in the Marconi Archives at the Bodleian⁠[[31]]. ## What would settle it For the deaths as a group, nothing more is needed to explain the count: ordinary rates produce more such deaths than the lists contain. For individual cases, the papers that exist are the inquest files (Avon for Dajibhai and Sharif, Hampshire for Sands, [Oxfordshire](https://mysteriesdept.com/mysteries/marconi-scientists/places/PLC0DGGE5F0TPBE/oxfordshire) for Peapell, Surrey for Ferry and Beckham, Bedfordshire for Wash⁠[[32]]), the unpublished police reports⁠[[33]], the open Foreign Office files on Wash and Moyle at Kew⁠[[34]]⁠[[35]], GEC's 1988 internal inquiry⁠[[20]], the papers of the 1990 Winchester fraud case⁠[[24]] and Collins's book⁠[[3]]. Local reports of each inquest, in county papers of 1986–1989, are the quickest way to the evidence heard. ## Questions 0 of 12 questions are answered. **Key questions** [All 12](https://mysteriesdept.com/questions/key-questions?mystery=marconi-scientists) **0** [Did any of the deaths share a common cause, such as killings by an intelligence service?](https://mysteriesdept.com/mysteries/marconi-scientists/questions/QST0DGG9JVJS6R7/did-any-of-the-deaths-share-a-common-cause-such-as-killings) 0 of 0 sub-questions answered·0 Open: 3 answers, none ahead **0** [Was the Ministry of Defence police fraud investigation into Marconi connected to the deaths?](https://mysteriesdept.com/mysteries/marconi-scientists/questions/QST0DGG9QBMA1DQ/was-the-ministry-of-defence-police-fraud-investigation-into) 0 of 0 sub-questions answered·0 Open: 2 answers, none ahead **0** [Were the people who died working on the same classified projects, such as Sting Ray, Tigerfish or the Strategic Defense Initiative?](https://mysteriesdept.com/mysteries/marconi-scientists/questions/QST0DGG9NEW2HG6/were-the-people-who-died-working-on-the-same-classified) 0 of 0 sub-questions answered·0 Open: 2 answers, none ahead **0** [Were there more deaths among British defence scientists and engineers in 1982–1990 than ordinary death rates would produce?](https://mysteriesdept.com/mysteries/marconi-scientists/questions/QST0DGG9HRA9QAX/were-there-more-deaths-among-british-defence-scientists-and) 0 of 0 sub-questions answered·0 Open: 2 answers, none ahead **0** [Which of the deaths remain unexplained after their inquests, and what would settle each one?](https://mysteriesdept.com/mysteries/marconi-scientists/questions/QST0DGG9P56CQK6/which-of-the-deaths-remain-unexplained-after-their-inquests) 0 of 6 sub-questions answered·0 No evidence yet **0** [Who is on the list of "Marconi scientists", and how was the list put together?](https://mysteriesdept.com/mysteries/marconi-scientists/questions/QST0DGG9R1ZCZKX/who-is-on-the-list-of-marconi-scientists-and-how-was-the) 0 of 0 sub-questions answered·0 Open: no answer ahead yet ## Evidence 17 findings [Were there more deaths among British defence scientists and engineers in 1982–1990 than ordinary death rates would produce?](https://mysteriesdept.com/mysteries/marconi-scientists/questions/QST0DGG9HRA9QAX/were-there-more-deaths-among-british-defence-scientists-and)2 findings [No excess: the listed deaths are fewer than ordinary rates predict](https://mysteriesdept.com/mysteries/marconi-scientists/answers/ANS0DGGAEDXE5GH/no-excess-the-listed-deaths-are-fewer-than-ordinary-rates)Still possible +[The lists name 8 GEC employees who died by suicide, open verdict or asphyxia in 1982–1990, against about 32 expected among GEC's 17,500 UK science and engineering graduates at England and Wales rates (ratio 0.25, 95% interval 0.11–0.50; 0.51 at half the rate) and about 161 expected among all 126,600 GEC UK employees (ratio 0.05).](https://mysteriesdept.com/mysteries/marconi-scientists/evidence/EVD0DGGC25H2Q8T/the-lists-hold-a-quarter-of-the-suicides-and-open-verdicts)Supported [Excess: more defence scientists died than chance allows](https://mysteriesdept.com/mysteries/marconi-scientists/answers/ANS0DGGAERBQPZ9/excess-more-defence-scientists-died-than-chance-allows)Ruled out −[For every denominator tried (GEC UK graduates, all GEC UK staff, all UK defence-industry staff), and even at half the general-population suicide rate, the listed suicides and open verdicts fall below the number expected; the upper end of the 95% interval stays at or below 1.](https://mysteriesdept.com/mysteries/marconi-scientists/evidence/EVD0DGGC2GM2DKK/no-realistic-workforce-makes-the-listed-count-an-excess)Supported [Did any of the deaths share a common cause, such as killings by an intelligence service?](https://mysteriesdept.com/mysteries/marconi-scientists/questions/QST0DGG9JVJS6R7/did-any-of-the-deaths-share-a-common-cause-such-as-killings)3 findings [Unconnected: each death had its own cause](https://mysteriesdept.com/mysteries/marconi-scientists/answers/ANS0DGGAEZC71NW/unconnected-each-death-had-its-own-cause)Still possible +[Shani Warren, the case on the lists with the clearest signs of foul play, was murdered by Donald Robertson, a serial sex offender from Slough with no defence connection, convicted at Reading Crown Court on 17 May 2022 on DNA from the gag.](https://mysteriesdept.com/mysteries/marconi-scientists/evidence/EVD0DGGC2TQMAT1/the-one-solved-case-was-a-murder-by-an-unconnected-local)Established +[Police investigated the contested deaths before and after their inquests, and the Home Office told Parliament there was no evidence linking Dajibhai, Sharif and Singh-Gida beyond Dajibhai and Singh-Gida having probably known each other at Loughborough in 1979.](https://mysteriesdept.com/mysteries/marconi-scientists/evidence/EVD0DGGC3KAPSNK/police-and-the-home-office-found-nothing-linking-the-cases)Suggestive [Soviet-bloc assassinations](https://mysteriesdept.com/mysteries/marconi-scientists/answers/ANS0DGGAF63NYK7/soviet-bloc-assassinations)Still possible −[The case most often cited as a staged killing, Shani Warren bound and gagged in Taplow Lake, was solved in 2022 as a sexually motivated murder by a local offender, not an intelligence killing.](https://mysteriesdept.com/mysteries/marconi-scientists/evidence/EVD0DGGC36QJG8A/the-strongest-foul-play-case-turned-out-to-be-an-ordinary)Supported [Were the people who died working on the same classified projects, such as Sting Ray, Tigerfish or the Strategic Defense Initiative?](https://mysteriesdept.com/mysteries/marconi-scientists/questions/QST0DGG9NEW2HG6/were-the-people-who-died-working-on-the-same-classified)2 findings [No shared secret project](https://mysteriesdept.com/mysteries/marconi-scientists/answers/ANS0DGGAVRCX50P/no-shared-secret-project)Still possible +[The MoD told Parliament that Sharif had no access above RESTRICTED, that Pugh never worked for it and that Cosmos was a private Marconi venture, and said Peapell's last project used open literature; Marconi said its three dead staff worked on separate projects at separate sites for separate companies.](https://mysteriesdept.com/mysteries/marconi-scientists/evidence/EVD0DGGCFH604C3/official-answers-put-the-dead-on-separate-mostly)Supported [A shared classified field: underwater warfare and SDI simulation](https://mysteriesdept.com/mysteries/marconi-scientists/answers/ANS0DGGAVY3375S/a-shared-classified-field-underwater-warfare-and-sdi)Still possible +[Tony Collins of Computer News said the three Marconi men all worked in a narrow field of underwater simulation, and a US source told the Sunday Times in 1988 that some of the dead worked on projects "applicable to star wars"; Marconi Space Systems and Easams held US-led missile-defence study contracts.](https://mysteriesdept.com/mysteries/marconi-scientists/evidence/EVD0DGGCKF33QAF/collins-and-a-us-source-tied-some-of-the-dead-to-underwater)Suggestive [Was the Ministry of Defence police fraud investigation into Marconi connected to the deaths?](https://mysteriesdept.com/mysteries/marconi-scientists/questions/QST0DGG9QBMA1DQ/was-the-ministry-of-defence-police-fraud-investigation-into)1 finding [Not connected to the fraud inquiry](https://mysteriesdept.com/mysteries/marconi-scientists/answers/ANS0DGGAW6TAJZQ/not-connected-to-the-fraud-inquiry)Still possible +[Asked whether the MoD police inquiry into Marconi contracts had ever questioned or examined Moore, Sharif, Dajibhai, Sands, Peapell or Brittan, the MoD answered no (31 March 1988); the inquiry concerned overcharging at Marconi's Portsmouth companies from October 1986.](https://mysteriesdept.com/mysteries/marconi-scientists/evidence/EVD0DGGCNNKYHYE/the-mod-said-the-fraud-inquiry-never-questioned-any-of-the)Supported [Who is on the list of "Marconi scientists", and how was the list put together?](https://mysteriesdept.com/mysteries/marconi-scientists/questions/QST0DGG9R1ZCZKX/who-is-on-the-list-of-marconi-scientists-and-how-was-the)2 findings [A press-built list of mixed cases, a third of them Marconi staff](https://mysteriesdept.com/mysteries/marconi-scientists/answers/ANS0DGGAWPTFZK7/a-press-built-list-of-mixed-cases-a-third-of-them-marconi)Still possible +[Contemporary reports count three Marconi deaths in April 1987, six by 7 April 1987, eight by March 1988, thirteen by August 1988 and at least sixteen by October 1988; Collins's 1990 book made it 25 and a 1998 retrospective 30. Of the 27 people named on the lists, 8 were GEC employees; 3 did not die, 1 was murdered by an unconnected offender and 1 was a journalist killed in Chile.](https://mysteriesdept.com/mysteries/marconi-scientists/evidence/EVD0DGGCPGJB4M1/the-list-grew-from-three-marconi-deaths-to-thirty-mostly)Established [A defined group of Marconi defence scientists](https://mysteriesdept.com/mysteries/marconi-scientists/answers/ANS0DGGB3ER4RB9/a-defined-group-of-marconi-defence-scientists)Still possible −[Only 8 of the 27 people named on the lists worked for GEC (Marconi or Easams) when they died; the rest worked for Plessey, British Aerospace, ICL, British Telecom, the AEA, the MoD, universities and other bodies, or were not in the defence industry at all.](https://mysteriesdept.com/mysteries/marconi-scientists/evidence/EVD0DGGCR267V71/fewer-than-a-third-of-the-people-named-were-gec-employees)Established [How did Vimal Dajibhai come to fall from the Clifton Suspension Bridge on 5 August 1986?](https://mysteriesdept.com/mysteries/marconi-scientists/questions/QST0DGG9Y36Z2SZ/how-did-vimal-dajibhai-come-to-fall-from-the-clifton)2 findings [Suicide, as police and coroner suspected](https://mysteriesdept.com/mysteries/marconi-scientists/answers/ANS0DGGB4C31PXS/suicide-as-police-and-coroner-suspected)Still possible +[Suicide was suspected at the inquest, which left the verdict open, and Avon and Somerset CID closed its inquiry having found no evidence linking his death to Sharif's or to Singh-Gida's disappearance.](https://mysteriesdept.com/mysteries/marconi-scientists/evidence/EVD0DGGD5QZPDHX/suicide-suspected-police-inquiry-closed-with-no-link-found)Suggestive [Killed by someone else](https://mysteriesdept.com/mysteries/marconi-scientists/answers/ANS0DGGB4HV6266/killed-by-someone-else)Still possible +[Dajibhai was found with his trousers lowered and a small puncture wound in the left buttock that the Bristol coroner's office called "a mystery then and remains a mystery now"; he had no known link to Bristol and friends said he was looking forward to a new job in the City.](https://mysteriesdept.com/mysteries/marconi-scientists/evidence/EVD0DGGD4Z6B82K/an-unexplained-puncture-wound-and-no-known-reason-to-be-in)Speculative [Did Ashad Sharif kill himself near Bristol on 28 October 1986, as the inquest found?](https://mysteriesdept.com/mysteries/marconi-scientists/questions/QST0DGGA0KC8V4Y/did-ashad-sharif-kill-himself-near-bristol-on-28-october)2 findings [Suicide, as the inquest found](https://mysteriesdept.com/mysteries/marconi-scientists/answers/ANS0DGGBCP6HY9B/suicide-as-the-inquest-found)Still possible +[The Bristol inquest recorded suicide for Ashad Sharif after an investigation by Avon and Somerset divisional CID under a senior headquarters officer.](https://mysteriesdept.com/mysteries/marconi-scientists/evidence/EVD0DGGD64JM0EB/the-inquest-found-suicide-after-a-cid-investigation)Supported [Staged to look like suicide](https://mysteriesdept.com/mysteries/marconi-scientists/answers/ANS0DGGBDCVFB6P/staged-to-look-like-suicide)Still possible +[Computer News reported that a relative who identified Sharif's body saw a long metal shaft on the car floor near the accelerator, which could have wedged it down.](https://mysteriesdept.com/mysteries/marconi-scientists/evidence/EVD0DGGD6HJS7NK/a-relative-reported-a-metal-rod-by-the-accelerator)Speculative [Was David Sands's crash into a disused cafe on 30 March 1987 deliberate?](https://mysteriesdept.com/mysteries/marconi-scientists/questions/QST0DGGA1KAYWZS/was-david-sandss-crash-into-a-disused-cafe-on-30-march-1987)1 finding [Deliberate: suicide by crash](https://mysteriesdept.com/mysteries/marconi-scientists/answers/ANS0DGGBE3KEQB4/deliberate-suicide-by-crash)Still possible +[Sands's wife reported him missing on the evening of 28 March 1987; two days later he drove at speed into an empty cafe with petrol cans in the boot, and Hampshire police worked on a suicide theory.](https://mysteriesdept.com/mysteries/marconi-scientists/evidence/EVD0DGGD6PEJ9QD/missing-the-night-before-petrol-in-the-boot-police-suspected)Suggestive [Who killed Shani Warren, found bound and gagged in Taplow Lake on 18 April 1987?](https://mysteriesdept.com/mysteries/marconi-scientists/questions/QST0DGGA3WXAZ99/who-killed-shani-warren-found-bound-and-gagged-in-taplow)2 findings [Donald Robertson, a local sex offender with no defence connection](https://mysteriesdept.com/mysteries/marconi-scientists/answers/ANS0DGGB3N1PEMG/donald-robertson-a-local-sex-offender-with-no-defence)Still possible +[A Reading Crown Court jury convicted Donald Robertson of the false imprisonment, indecent assault and murder of Shani Warren on 17 May 2022, after a cold-case review found his DNA on the gag and her bra.](https://mysteriesdept.com/mysteries/marconi-scientists/evidence/EVD0DGGCSA9RDR8/robertson-convicted-of-shani-warrens-murder-on-dna-evidence)Established [Killed because of the Marconi connection](https://mysteriesdept.com/mysteries/marconi-scientists/answers/ANS0DGGB3XRCAWZ/killed-because-of-the-marconi-connection)Still possible −[The man convicted of killing Shani Warren was a local serial sex offender who attacked other women and girls around Slough; nothing links him to GEC, Marconi or any intelligence service.](https://mysteriesdept.com/mysteries/marconi-scientists/evidence/EVD0DGGCSVDVRCS/shani-warrens-killer-had-no-defence-connection)Established ## See also [ **America's missing scientists, 2021–2026** Deaths and disappearances among US aerospace, nuclear and fringe-physics workers, 2021–2026, and whether any are connected. ](https://mysteriesdept.com/mysteries/missing-scientists) [ **Roswell, 1947** Debris found near Roswell, New Mexico, in 1947 and announced as a flying disc. ](https://mysteriesdept.com/mysteries/roswell) [ **Somerton Man (Tamam Shud)** A man found dead on an Adelaide beach in 1948, named from DNA by researchers in 2022. ](https://mysteriesdept.com/mysteries/somerton-man) [ **1908 Tunguska event** An explosion over the Siberian taiga in 1908 that flattened 2,150 km² of forest. ](https://mysteriesdept.com/mysteries/tunguska-event) ## References 1. 1.[Tyler Marshall 1987. Their Firm Linked to 'Star Wars': British Scientists' Deaths: Suicides or Conspiracy?.](https://mysteriesdept.com/sources/SRC0DGG6K49BE92/their-firm-linked-to-star-wars-british-scientists-deaths)cited 10 times here**SRC** 0DGG6K49BE92 1. 2.[NZPA-PA 1987. Sixth scientist found dead.](https://mysteriesdept.com/sources/SRC0DGG68CHBYC4/sixth-scientist-found-dead)cited 5 times here**SRC** 0DGG68CHBYC4 1. 3.[Tony Collins 1990. Open Verdict: An Account of 25 Mysterious Deaths in the Defence Industry.](https://mysteriesdept.com/sources/SRC0DGG6Y5585Y0/open-verdict-an-account-of-25-mysterious-deaths-in-the)cited 3 times here**SRC** 0DGG6Y5585Y0 1. 4.[Howard Witt 1988. Scientists' Deaths Mystify British.](https://mysteriesdept.com/sources/SRC0DGG6JXTCFY6/scientists-deaths-mystify-british)cited 8 times here**SRC** 0DGG6JXTCFY6 1. 5.[A tertiary summary of the Marconi cases and their inquest verdicts, including the 2021 DNA finding that one death first ruled a suicide was a murder by an unconnected offender.](https://mysteriesdept.com/sources/SRC0DCQE84MFBP4/gec-marconi-scientist-deaths-conspiracy-theory)cited 7 times here**SRC** 0DCQE84MFBP4 1. 6.[House of Commons 1988. Scientists (Deaths): written answers, House of Commons, 31 March 1988 (HC Deb vol 130 c624W).](https://mysteriesdept.com/sources/SRC0DGG5KE0Q5R5/scientists-deaths-written-answers-house-of-commons-31-march)cited 4 times here**SRC** 0DGG5KE0Q5R5 1. 7.[House of Commons 1988. Scientists and Computer Experts (Deaths): written answers, House of Commons, 11 November 1988 (HC Deb vol 140 c322W).](https://mysteriesdept.com/sources/SRC0DGG5X6DGVB6/scientists-and-computer-experts-deaths-written-answers-house)cited 3 times here**SRC** 0DGG5X6DGVB6 1. 8.[Crown Prosecution Service 2022. Donald Robertson: Predatory sex offender found guilty in historic rape and murder case.](https://mysteriesdept.com/sources/SRC0DGG6KKAQTXC/donald-robertson-predatory-sex-offender-found-guilty-in)cited 7 times here**SRC** 0DGG6KKAQTXC 1. 9.[Office for National Statistics 2026. Suicides in England and Wales: reference tables, 2025 registrations.](https://mysteriesdept.com/sources/SRC0DGG78MHBCW8/suicides-in-england-and-wales-reference-tables-2025)cited 4 times here**SRC** 0DGG78MHBCW8 1. 10.[Monopolies and Mergers Commission 1989. The General Electric Company plc, Siemens AG and The Plessey Company plc: a report on the proposed mergers (Monopolies and Mergers Commission, 1989), chapter 2.](https://mysteriesdept.com/sources/SRC0DGG78YY6FZK/the-general-electric-company-plc-siemens-ag-and-the-plessey)cited 4 times here**SRC** 0DGG78YY6FZK 1. 11.[Mark J. Harper, Project Camelot 2005. 25 Marconi Scientists, 1982–88 (Project Camelot list, after Mark J. Harper's "Dead Scientists and Microbiologists" master list).](https://mysteriesdept.com/sources/SRC0DGG6YEENQCQ/25-marconi-scientists-198288-project-camelot-list-after-mark)cited 14 times here**SRC** 0DGG6YEENQCQ 1. 12.[House of Commons 1987. Scientists (Deaths): written answer, House of Commons, 9 April 1987 (HC Deb vol 114 c362W).](https://mysteriesdept.com/sources/SRC0DGG5JG3R7ZQ/scientists-deaths-written-answer-house-of-commons-9-april)cited 5 times here**SRC** 0DGG5JG3R7ZQ 1. 13.[NZPA-Reuter 1988. Eighth British boffin dies oddly.](https://mysteriesdept.com/sources/SRC0DGG68T2FYT2/eighth-british-boffin-dies-oddly)cited 4 times here**SRC** 0DGG68T2FYT2 1. 14.[NZPA-AAP 1988. Another defence scientist dies.](https://mysteriesdept.com/sources/SRC0DGG691M2NTZ/another-defence-scientist-dies)cited 3 times here**SRC** 0DGG691M2NTZ 1. 15.[Peter Huck 1988. The Baffling Case of the Dead Scientists.](https://mysteriesdept.com/sources/SRC0DGG6K9BVS94/the-baffling-case-of-the-dead-scientists)cited 2 times here**SRC** 0DGG6K9BVS94 1. 16.[House of Commons 1988. Inquests (Police Investigations): written answer, House of Commons, 19 April 1988 (HC Deb vol 131 c407W).](https://mysteriesdept.com/sources/SRC0DGG5N0TNBHY/inquests-police-investigations-written-answer-house-of)cited 4 times here**SRC** 0DGG5N0TNBHY 1. 17.[House of Commons 1987. Deaths (Bristol): written answer, House of Commons, 23 March 1987 (HC Deb vol 113 c11W).](https://mysteriesdept.com/sources/SRC0DGG587N39BE/deaths-bristol-written-answer-house-of-commons-23-march-1987)cited 6 times here**SRC** 0DGG587N39BE 1. 18.[NZPA-PA 1987. Inquiry sought into deaths of scientists.](https://mysteriesdept.com/sources/SRC0DGG683M6V9V/inquiry-sought-into-deaths-of-scientists)cited 3 times here**SRC** 0DGG683M6V9V 1. 19.[Marcus Eliason 1988. Coincidence or conspiracy?.](https://mysteriesdept.com/sources/SRC0DGG68J10XD6/coincidence-or-conspiracy)cited 10 times here**SRC** 0DGG68J10XD6 1. 20.[NZPA-AP 1988. Pentagon wants to investigate scientists mystery.](https://mysteriesdept.com/sources/SRC0DGG697ASPC1/pentagon-wants-to-investigate-scientists-mystery)cited 6 times here**SRC** 0DGG697ASPC1 1. 21.[Simon Rogerson 1998. The mystery of the Marconi boffins.](https://mysteriesdept.com/sources/SRC0DGG6KEC4P0N/the-mystery-of-the-marconi-boffins)cited 5 times here**SRC** 0DGG6KEC4P0N 1. 22.[House of Commons 1988. Dr. John Brittan: written answer, House of Commons, 19 April 1988 (HC Deb vol 131 c426W).](https://mysteriesdept.com/sources/SRC0DGG5M2399C1/dr-john-brittan-written-answer-house-of-commons-19-april)cited 3 times here**SRC** 0DGG5M2399C1 1. 23.[House of Commons 1987. Marconi (contract investigations): written answer, House of Commons, 2 November 1987 (HC Deb vol 121 c599W).](https://mysteriesdept.com/sources/SRC0DGG5YR5V7QH/marconi-contract-investigations-written-answer-house-of)cited 3 times here**SRC** 0DGG5YR5V7QH 1. 24.[House of Commons 1990. Marconi (Serious Fraud Office): written answer, House of Commons, 29 March 1990 (HC Deb vol 170 cc280-1W).](https://mysteriesdept.com/sources/SRC0DGG5YY0NQ6K/marconi-serious-fraud-office-written-answer-house-of-commons)cited 2 times here**SRC** 0DGG5YY0NQ6K 1. 25.[Mark Delmege 1991. Mysteries from the Cold War (review of Open Verdict).](https://mysteriesdept.com/sources/SRC0DGG6M5DDTBQ/mysteries-from-the-cold-war-review-of-open-verdict)cited 2 times here**SRC** 0DGG6M5DDTBQ 1. 26.[Peter Marsh 1987. Bizarre deaths start speculation (Financial Times, 3 April 1987).](https://mysteriesdept.com/sources/SRC0DGG6Z1XV60K/bizarre-deaths-start-speculation-financial-times-3-april)cited 1 time here**SRC** 0DGG6Z1XV60K 1. 27.[House of Commons 1987. Mr. Sharif: written answer, House of Commons, 31 March 1987 (HC Deb vol 113 c455W).](https://mysteriesdept.com/sources/SRC0DGG5A4NEZ08/mr-sharif-written-answer-house-of-commons-31-march-1987-hc)cited 3 times here**SRC** 0DGG5A4NEZ08 1. 28.[The Unredacted 2018. Dead Scientists: The Marconi Murders.](https://mysteriesdept.com/sources/SRC0DGG6YNQD49D/dead-scientists-the-marconi-murders)cited 1 time here**SRC** 0DGG6YNQD49D 1. 29.[SOFREP 2020. Star Wars conspiracy? A Cold War secret project and 20 dead scientists.](https://mysteriesdept.com/sources/SRC0DGG6YV8X6JC/star-wars-conspiracy-a-cold-war-secret-project-and-20-dead)cited 1 time here**SRC** 0DGG6YV8X6JC 1. 30.[The 1980s British precedent: more than twenty defence scientists, mostly at GEC-Marconi, dead between 1982 and 1988, which the Ministry of Defence called coincidence.](https://mysteriesdept.com/sources/SRC0DCQE7H9RY1W/the-many-real-life-deaths-surrounding-the-star-wars-defense)cited 4 times here**SRC** 0DCQE7H9RY1W 1. 31.[Bodleian Libraries, Marconi Archives 1990. Marconi suicides and conspiracy theory, 1988–90 (press cuttings file, MS. Marconi 1703).](https://mysteriesdept.com/sources/SRC0DGG6ZBBZ357/marconi-suicides-and-conspiracy-theory-198890-press-cuttings)cited 1 time here**SRC** 0DGG6ZBBZ357 1. 32.[Bedfordshire Archives Service, Coroner for Bedfordshire 1988. Inquest papers relating to the death of Jonathan Francis Wash, died 19 Nov 1985 in Abidjan: open verdict (Co/Inq2/3/CB/85/Wash).](https://mysteriesdept.com/sources/SRC0DGG77FWPTFB/inquest-papers-relating-to-the-death-of-jonathan-francis)cited 3 times here**SRC** 0DGG77FWPTFB 1. 33.[House of Commons 1987. Mr. V. Dajibhai and Mr. A. Sharif: written answer, House of Commons, 25 March 1987 (HC Deb vol 113 c159W).](https://mysteriesdept.com/sources/SRC0DGG58GJFCMK/mr-v-dajibhai-and-mr-a-sharif-written-answer-house-of)cited 3 times here**SRC** 0DGG58GJFCMK 1. 34.[Foreign and Commonwealth Office 1986. Death of Jonathan Wash, UK national, Abidjan, Ivory Coast, following a fall from a hotel balcony, November 1985 (FCO 65/3861).](https://mysteriesdept.com/sources/SRC0DGG77RKA2ZA/death-of-jonathan-wash-uk-national-abidjan-ivory-coast)cited 3 times here**SRC** 0DGG77RKA2ZA 1. 35.[Foreign and Commonwealth Office 1991. Chile: consular cases; Jonathan Moyle, editor, 'Defence Helicopter World', found dead in Santiago, March 1990 (FCO 7/8389).](https://mysteriesdept.com/sources/SRC0DGG781FJQC3/chile-consular-cases-jonathan-moyle-editor-defence)cited 2 times here**SRC** 0DGG781FJQC3 Last edited 3 Nov 2026