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https://www.productionai.institute/graph/events/evt-aiid-1491

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Production AI Institute public record · AI Incident Database: ChatGPT Use Was Reportedly Cited in Delusional State Before Homicide and Assault in Readfield, Maine · observed 2026-06-24
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AI Incident Database: ChatGPT Use Was Reportedly Cited in Delusional State Before Homicide and Assault in Readfield, Maine

In February 2025, Samuel Whittemore killed his wife, Margaux Whittemore, and assaulted his mother, Dorothy Whittemore, at a home in Readfield, Maine. Court reporting said forensic psychologists testified he was experiencing bipolar disorder with psychotic features and delusions, and that he had used ChatGPT up to 14 hours a day as a companion before the attack. Current reporting links ChatGPT use to his deteriorating mental state but does not establish direct violent instruc…

AI Incident Database · Incident 1491

Operator lens (critical): inspect D4 (observability), D5 (model change gate).

Confidence
82%
Sources
3
Entities
5
Detected
detected 72d ago

Event summary

In February 2025, Samuel Whittemore killed his wife, Margaux Whittemore, and assaulted his mother, Dorothy Whittemore, at a home in Readfield, Maine. Court reporting said forensic psychologists testified he was experiencing bipolar disorder with psychotic features and delusions, and that he had used ChatGPT up to 14 hours a day as a companion before the attack. Current reporting links ChatGPT use to his deteriorating mental state but does not establish direct violent instruc…

D4D5

Linked entities

  • OpenAI

    vendor | 70%

  • samuel-whittemore

    organisation | 70%

  • margaux-whittemore

    organisation | 70%

  • dorothy-whittemore

    organisation | 70%

  • domestic-violence-victims

    organisation | 70%

Related graph edges

EdgeTypeConfidence
ent-vendor-openai to ent-psf-d1maps to60%
ent-vendor-openai to ent-psf-d1maps to60%
ent-vendor-openai to ent-psf-d1maps to60%
ent-vendor-openai to ent-psf-d2maps to60%
ent-vendor-openai to ent-psf-d2maps to60%
ent-vendor-openai to ent-psf-d2maps to60%
ent-vendor-openai to ent-psf-d6maps to60%
ent-vendor-openai to ent-psf-d6maps to60%
ent-vendor-openai to ent-psf-d6maps to60%
ent-vendor-openai to ent-psf-d2maps to60%
ent-vendor-openai to ent-psf-d2maps to60%
ent-vendor-openai to ent-psf-d2maps to60%

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Event dates

  • Happened 19 Feb 2025

  • Detected 24 June 2026

Sources

  • AI Incident Database - Incident 1491

    secondary | checked 9 July 2026

    Open source
  • Belfast man found not criminally responsible for killing wife, attacking mother in Readfield

    secondary | checked 24 June 2026

    Open source
  • Belfast man who killed his wife spent hours talking with Chat GPT and believed robots were taking over the world

    secondary | checked 13 May 2026

    Open source
Cite this record

"AI Incident Database: ChatGPT Use Was Reportedly Cited in Delusional State Before Homicide and Assault in Readfield, Maine." https://www.productionai.institute/graph/events/evt-aiid-1491 (observed 2025-02-19; retrieved 2026-09-04). PAI.

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