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British Columbia Sues OpenAI Over AI's Role in Tumbler Ridge Mass Shooting

September 21, 2026
oecd:2026-09-21-2a05View source ↗

What happened

British Columbia filed a lawsuit against OpenAI and CEO Sam Altman, alleging the company failed to warn authorities about violent interactions between the Tumbler Ridge mass shooter and ChatGPT. The suit claims this omission contributed to the February 2026 attack that killed eight, including students, and seeks accountability and damages.

Reported impact

Affected parties
Not publicly disclosed
Harm type
Not publicly disclosed
Scale
Not publicly disclosed
Financial impact
Not publicly disclosed
Regulatory action
Not publicly disclosed

Classification

Organization
Not publicly disclosed
AI system
Not publicly disclosed
Industry
Not publicly disclosed
Country
Not publicly disclosed
Provider
Not publicly disclosed
Incident type
Not publicly disclosed

Relevant governance controls

Governance control mapping is not available for this record.

  • No controls mappedNot publicly disclosed

Control mapping is analytical. It does not state that any control would have prevented the incident.

Sources and evidence

OECD AI Incidents Monitor
Primary source
British Columbia Sues OpenAI Over AI's Role in Tumbler Ridge Mass Shooting
2026-09-21