Massachusetts teen accused of killing mother and brother used ChatGPT

A Massachusetts teenager accused of killing his mother and younger brother is being held without bail as authorities investigate a double-murder case that prosecutors say is connected to his use of ChatGPT. Arjun Aravind, 17, appeared on Thursday morning for his arraignment in Concord district court, where a not-guilty plea was entered on his behalf to murder and several additional charges. Authorities allege Arjun killed his mother, 45-year-old Sudha Venkatesan, and his 14-year-old brother, Siddharth Aravind, inside the family's home on Tuesday. The investigation began after the teenager's tutor arrived for a scheduled appointment at the home on Tuesday and "was unable to make contact with residents upon arrival", prosecutors said. The teen's father, who had last spoken with his wife before leaving for work that morning, then contacted police.