Description: A 22-year-old man in Ringsted, Denmark allegedly used an AI chatbot to research how to injure his former father-in-law "as much as possible" without killing him, reportedly bypassing safety guardrails by posing as an author. He then allegedly attacked the victim on with a rubber hammer, striking him twice in the head. The court reportedly found him guilty of aggravated assault, noting the AI-assisted planning as a central element of the case.
Editor Notes: Timeline notes: The alleged attack took place on 02/05/2025, but reporting on the purported use of AI in planning the attack appears to have emerged about ten months later in early December. The incident ID was created 12/06/2025.
Entities
View all entitiesAlleged: Unknown generative AI developers developed an AI system deployed by Unnamed 22-year-old man from Denmark, which harmed Unnamed 56-year-old man from Denmark.
Alleged implicated AI systems: Unknown generative AI systems and Unknown large language models
Incident Stats
Incident ID
1296
Report Count
1
Incident Date
2025-02-05
Editors
Daniel Atherton
Incident Reports
Reports Timeline
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A 22-year-old man was sentenced to ten months in prison on Thursday at the Court in Roskilde for assaulting his former father-in-law with a rubber hammer.
The Central and West Zealand Police wrote in a press release.
The man hit his father-…
Variants
A "variant" is an AI incident similar to a known case—it has the same causes, harms, and AI system. Instead of listing it separately, we group it under the first reported incident. Unlike other incidents, variants do not need to have been reported outside the AIID. Learn more from the research paper.
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