Massachusetts teen accused of killing mom, brother in affluent suburb after disturbing ChatGPT activity: DA

A 17-year-old Massachusetts boy who allegedly used ChatGPT to explore fantasies about killing his family is accused of murdering his mother and younger brother inside the family's home in an affluent Boston suburb and was ordered held without bail Thursday as prosecutors revealed new details about the violent scene.

Arjun Aravind, of Acton, was arraigned Thursday in Concord District Court on two counts of murder, two counts of assault and battery with a dangerous weapon and two counts of assault and battery, the Middlesex District Attorneys Office confirmed to Fox News Digital.

He was charged as an adult under Massachusetts law, and he pleaded not guilty, the DAs office said.

Middlesex District Attorney Marian Ryan said Wednesday that investigators uncovered what she characterized as "concerning behavior" by Aravind in the period before the deaths, including internet activity and the use of ChatGPT to explore theoretical or fictional scenarios involving the killing of his family.

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Ryan said Aravind allegedly used the artificial intelligence chatbot to "make searches including for theoretical ideas or fantasies regarding killing his family."

The teen is accused of murdering his mother, Sudha Venkatesan, 45, and his 14-year-old brother, Siddharth Aravind, who were found dead Tuesday evening inside the familys Martha Lane home.

Acton is an affluent community about 30 miles north-west of Boston, and the family had recently moved to the town in part for its schools and a support system for the children, Aravinds defense attorney, Debra DeWitt, told CBS News Boston following Thursdays hearing.

Authorities were called to the home shortly after 6:30 p.m. Tuesday after Aravinds father requested a well-being check.

The father had been at work and was worried after a tutor who arrived at the house was unable to get inside, according to authorities. After repeated attempts to contact his family went unanswered, he contacted police.

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Responding officers entered the home and found Siddharth dead on the first floor. Venkatesan was subsequently found dead in the finished basement, authorities said.

Prosecutors said Thursday that investigators encountered evidence of a violent physical struggle inside the home and that preliminary evidence indicated both victims suffered blunt-force trauma.

The official causes of death remain pending determinations by the medical examiner.

Venkatesan was last seen alive at about 7 a.m. Tuesday, when her husband left for work, according to Ryan.

Siddharth went to a recreational facility around 9 a.m. and returned home shortly after noon.

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Investigators quickly discovered that Venkatesans green Honda Accord was also missing from the residence.

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