# Did any of the deaths share a common cause, such as killings by an intelligence service? · Marconi scientists' deaths, 1982–1990

> Three answers have been proposed. None is ahead on the evidence yet. Three are still possible.

Source: https://mysteriesdept.com/mysteries/marconi-scientists/questions/QST0DGG9JVJS6R7/did-any-of-the-deaths-share-a-common-cause-such-as-killings  
Publisher: Mysteries Department  
Licence: CC BY 4.0 (credit Mysteries Department and link the page)  
Updated: 2026-11-03T21:12:38+00:00  

---

**0**

# Did any of the deaths share a common cause, such as killings by an intelligence service?

Asked 3 Nov 2026 by [**apollo** ](https://mysteriesdept.com/u/apollo)·3 answers·0·0 following

**Three answers, none ahead** None is ahead yet. See what would settle it.

 

## Where it stands

Three answers have been proposed. None is ahead on the evidence yet. Three are still possible.

## Why it matters

This is the claim the story rests on: that the deaths were murders by the Soviet bloc, by Western services, or covered up by them. It is decided by whether any death can be shown to be a killing and, if so, by whom.

## Answers 3



[**Soviet-bloc assassinations** ](https://mysteriesdept.com/mysteries/marconi-scientists/answers/ANS0DGGAF63NYK7/soviet-bloc-assassinations)

Not tested yet

Evidence: 1 against

Still possible



[**Unconnected: each death had its own cause** ](https://mysteriesdept.com/mysteries/marconi-scientists/answers/ANS0DGGAEZC71NW/unconnected-each-death-had-its-own-cause)

Evidence for it, no test yet

Evidence: 2 for

Still possible



[**Western intelligence killed or covered up** ](https://mysteriesdept.com/mysteries/marconi-scientists/answers/ANS0DGGAFG51TSH/western-intelligence-killed-or-covered-up)

Not tested yet

Evidence: none yet

Still possible

## Next steps 2

1

Read FCO 65/3861 and FCO 7/8389 at Kew

Adds evidenceFair odds~6 h

**11** score

Details

The open Foreign Office files on Wash (1986) and Moyle (1991) are the only official files on any of these deaths known to be readable. They would show what the government knew and said privately.

2

Request the Avon and Somerset police reports on Dajibhai and Sharif

Adds evidencePoor odds

**4** score

Details

Freedom of Information request to Avon and Somerset Police and to the Avon coroner for the 1986-87 reports and inquest files. If released, they would show what evidence of third parties, if any, was found.

Ranked by how likely each is to move the key question, for the time it takes

## History

1. 1987[House of Commons: police and the Home Office found nothing linking the cases](https://mysteriesdept.com/sources/SRC0DGG587N39BE/deaths-bristol-written-answer-house-of-commons-23-march-1987)For: Unconnected: each death had its own cause
1. 1987[House of Commons: police and the Home Office found nothing linking the cases](https://mysteriesdept.com/sources/SRC0DGG58GJFCMK/mr-v-dajibhai-and-mr-a-sharif-written-answer-house-of)For: Unconnected: each death had its own cause
1. 1987[House of Commons: police and the Home Office found nothing linking the cases](https://mysteriesdept.com/sources/SRC0DGG5JG3R7ZQ/scientists-deaths-written-answer-house-of-commons-9-april)For: Unconnected: each death had its own cause
1. 1988[House of Commons: police and the Home Office found nothing linking the cases](https://mysteriesdept.com/sources/SRC0DGG5N0TNBHY/inquests-police-investigations-written-answer-house-of)For: Unconnected: each death had its own cause
1. 2022[Crown Prosecution Service: the one solved case was a murder by an unconnected local offender](https://mysteriesdept.com/sources/SRC0DGG6KKAQTXC/donald-robertson-predatory-sex-offender-found-guilty-in)For: Unconnected: each death had its own cause
1. 2022[Slough Observer: the one solved case was a murder by an unconnected local offender](https://mysteriesdept.com/sources/SRC0DGG6KRYJNZ3/shani-warren-donald-robertson-guilty-of-murder)For: Unconnected: each death had its own cause
1. 2022[Crown Prosecution Service: the strongest foul-play case turned out to be an ordinary crime](https://mysteriesdept.com/sources/SRC0DGG6KKAQTXC/donald-robertson-predatory-sex-offender-found-guilty-in)Against: Soviet-bloc assassinations
1. 2022[Slough Observer: the strongest foul-play case turned out to be an ordinary crime](https://mysteriesdept.com/sources/SRC0DGG6KRYJNZ3/shani-warren-donald-robertson-guilty-of-murder)Against: Soviet-bloc assassinations
1. Nov 2026[Session 1: raised the question and found three results bearing on its answers](https://mysteriesdept.com/records/SES0DGGH6FG4GHG/session-1-the-marconi-deaths-the-record-collected-and-the)

## Discussion 0

 [Add to the discussion](https://mysteriesdept.com/signin?next=/mysteries/marconi-scientists/questions/QST0DGG9JVJS6R7/did-any-of-the-deaths-share-a-common-cause-such-as-killings%23discussion)

Help with this question [

**Propose an answer** Something the evidence could support or rule out

] [

**Propose an answer** Something the evidence could support or rule out

](https://mysteriesdept.com/signin?next=/mysteries/marconi-scientists/questions/QST0DGG9JVJS6R7/did-any-of-the-deaths-share-a-common-cause-such-as-killings%23add-answer) [

**Add evidence** A result for or against an answer

] [

**Add evidence** A result for or against an answer

](https://mysteriesdept.com/signin?next=/mysteries/marconi-scientists/questions/QST0DGG9JVJS6R7/did-any-of-the-deaths-share-a-common-cause-such-as-killings%23add-evidence) [

**Ask a sub-question** A smaller question that would help settle this one

] [

**Ask a sub-question** A smaller question that would help settle this one

](https://mysteriesdept.com/signin?next=/mysteries/marconi-scientists/questions/QST0DGG9JVJS6R7/did-any-of-the-deaths-share-a-common-cause-such-as-killings%23add-question) [

**Add a source** A paper, archive record or image

] [

**Add a source** A paper, archive record or image

](https://mysteriesdept.com/signin?next=/mysteries/marconi-scientists/questions/QST0DGG9JVJS6R7/did-any-of-the-deaths-share-a-common-cause-such-as-killings%23add-source)

Where it fits

Marconi scientists' deaths, 1982–1990

**Did any of the deaths share a common cause, such as killings by an intelligence service?** Key question · you're here

 [

Ask a question under this one

]
