Warning: This article contains details which some readers may find distressing.
In a harrowing case from October 2025, 18-year-old Tristan Roberts was sentenced to life in prison for the murder of his mother, Angela Shellis, 45. The crime took place in Morfa Nature Reserve, Prestatyn, where Roberts brutally attacked his mother with a hammer during the early hours of the morning, ultimately leading to her death. Following a gruesome trail of blood, her body was discovered by dog walkers later that day.
Police investigation into the murder began when surveillance footage showed Roberts leaving home with his mother around 3 a.m. His arrest followed the revelation that he had expressed violent fantasies online and consulted an AI chatbot for advice on committing the act. This unsettling detail has raised questions about the role of technology in facilitating harmful behaviors.
Roberts, who had a history of troubling online behavior, frequently posted misogynistic comments and violent tendencies on the social media platform Discord. His messages included alarming admissions about his desire to kill, with one stating, “I can kill her bare-handed. I only want to make it brutal and make sure I don’t mess up with an axe.” On the night of the murder, he updated his profile with the ominous note, “Tonight’s the night,” and later remarked, “I’ve just had the craziest day.”
A note found on his laptop further illustrated his motives, wherein he expressed resentment towards his mother for his troubled upbringing, claiming she was responsible for his suffering. This narrative of blame culminated in a chilling justification for the murder: “Even if it hurts. There is no use living anymore if I don’t do this. I am already dead.”
Murder Tips from an AI Chatbot
Crucially, the investigation uncovered that Roberts had sought advice from an AI chatbot on how to commit the murder, framing it as research for a book he was allegedly writing. The chatbot’s refusal to assist did not deter him, highlighting a disturbing intersection of technology and violent intent.
Roberts had recorded the assault on a dictaphone, revealing that he had held his mother captive for several hours before the murder. The recording captured the initial attack and his chilling remarks afterward, including “Oh God, that was terrifying, that felt so crazy… I just killed her… job’s done.”
During his police interrogation, Roberts opted for silence, ultimately pleading guilty. A court in Mold sentenced him to life with a minimum term of 22-and-a-half years. Judge Rhys Rowlands noted that Roberts, diagnosed with autism and ADHD, was aware of his actions, stating that while these conditions were taken into account, they did not significantly impair his behavior during the crime.
This case has reignited discussions surrounding the impact of social media and AI technology on violent behavior. As society grapples with these issues, the implications for mental health and the responsibility of tech companies remain pressing concerns. The legal system will continue to be challenged in addressing crimes that intersect with technological advancements, highlighting the urgent need for safeguarding mechanisms in digital spaces.
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