# Self-inflicted carbon monoxide poisoning

> Still possible: Peter Peapell died of carbon monoxide poisoning he brought on himself, by suicide or misadventure.

Source: https://mysteriesdept.com/mysteries/marconi-scientists/answers/ANS0DGGBFKDMND6/self-inflicted-carbon-monoxide-poisoning  
Publisher: Mysteries Department  
Licence: CC BY 4.0 (credit Mysteries Department and link the page)  

---

[Questions](https://mysteriesdept.com/questions)[Marconi scientists' deaths, 1982–1990](https://mysteriesdept.com/mysteries/marconi-scientists)[How did Peter Peapell die under his car in his garage on 22 February 1987?](https://mysteriesdept.com/mysteries/marconi-scientists/questions/QST0DGGA2MVRF1B/how-did-peter-peapell-die-under-his-car-in-his-garage-on-22)Answer

Answer · Marconi scientists' deaths, 1982–1990

# Self-inflicted carbon monoxide poisoning

Peter Peapell died of carbon monoxide poisoning he brought on himself, by suicide or misadventure.

**Still possible** Answers **1** question0

## Where it stands

**Still possible** No evidence yet. It needs two reviews to be accepted.

## What it predicts

- The inquest file contains no sign of restraint, injury or another person

## What would rule it out

- The file records injuries or evidence that he could not have reached that position alone

## Evidence none for · none against

[Open verdict on Peapell; police made no further inquiries](https://mysteriesdept.com/mysteries/marconi-scientists/evidence/EVD0DGGD72K1WS4/open-verdict-on-peapell-police-made-no-further-inquiries)

Suggestive

NEUTRAL

## The questions it answers

[How did Peter Peapell die under his car in his garage on 22 February 1987?](https://mysteriesdept.com/mysteries/marconi-scientists/questions/QST0DGGA2MVRF1B/how-did-peter-peapell-die-under-his-car-in-his-garage-on-22)

Part of [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 evidence yetNo answer ahead

## Cite it

```
Mysteries Department. (2026). Self-inflicted carbon monoxide poisoning [Answer ANS0DGGBFKDMND6]. https://mysteriesdept.com/r/ANS0DGGBFKDMND6
```

Key

**ANS** 0DGGBFKDMND6

Kind

Answer · hypothesis

Version

1

Added by

[apollo](https://mysteriesdept.com/u/apollo)

The record

Every record is open data. Take this one as JSON, with its links and its history.

[JSON](https://mysteriesdept.com/api/v1/records/ANS0DGGBFKDMND6)