17-Year-Old Allegedly Used ChatGPT Before Killing Mother and Brother

A 17-year-old boy in Massachusetts, United States, has been accused of killing his mother and younger brother after prosecutors alleged that he used ChatGPT to explore “theoretical ideas or fantasies” about killing his family.

Arjun Aravind, from Acton, was arraigned on Thursday at Concord District Court on two counts of murder, as well as charges of assault and battery with a dangerous weapon and assault and battery. He was charged as an adult and pleaded not guilty. The court ordered that he be held without bail.

Middlesex District Attorney Marian Ryan said investigators uncovered concerning behaviour before the killings, including the teenager’s internet activity and alleged use of ChatGPT to search for theoretical ideas or fantasies involving the killing of his family.

Aravind is accused of killing his 45-year-old mother, Sudha Venkatesan, and his 14-year-old brother, Siddharth Aravind, at their family home in Acton.

Police were called to the residence shortly after 6:30 p.m. on Tuesday after Aravind’s father requested a welfare check. The father had reportedly been at work and became concerned after a tutor arrived at the house but could not gain entry. Repeated attempts to contact the family also went unanswered.

Officers who entered the home found Siddharth dead on the first floor, while Venkatesan was later found dead in the finished basement.

Prosecutors said investigators discovered evidence of a violent struggle inside the house. Preliminary findings indicated that both victims suffered blunt-force trauma, although their official causes of death had not yet been determined by the medical examiner.

Investigators also discovered that Venkatesan’s green Honda Accord was missing from the residence.

Aravind was found around 3:40 a.m. Wednesday inside the vehicle in a parking lot in nearby Wayland, Massachusetts, and was arrested without incident.

Prosecutors said investigators recovered several items from the vehicle that they believe corresponded with evidence from the crime scene, although authorities have not publicly disclosed what the items were.

Court documents reportedly indicate that Aravind’s father had become concerned about his son’s recent behaviour and internet use and had begun hiding knives inside the family home.

Aravind’s lawyer, Debra DeWitt, requested a mental health evaluation for the teenager. When the judge asked whether the evaluation was related to his competency to stand trial or potential criminal responsibility, the lawyer said that had not yet been determined.

Aravind had also reportedly received medical treatment for an injury to his hand before appearing in court and was cleared to attend the hearing.

According to his lawyer, the family had recently moved to Acton, an affluent community about 30 miles northwest of Boston, partly because of its schools and support system for their children.

Aravind is expected to return to court on September 11 for a probable cause hearing.

The allegations against Aravind have not been proven in court, and he remains presumed innocent unless proven guilty.