Arjun Aravind, a resident of Acton, has been charged with two counts of murder, two counts of assault and battery on a household or family member, two counts of assault and battery, use of a vehicle without authority, and theft of a motor vehicle in connection with the deaths of his brother Siddharth Aravind, 14, and mother Sudha Venkatesan, 45.
Arjun's father had last had contact with his wife Sudha early that morning before he left for work, while his younger son Siddharth was last seen around noon.
Investigators tried to locate Arjun but were initially unsuccessful and alerted law enforcement agencies and the public to be on the lookout for him. Early Wednesday morning, police in Wayland, Massachusetts, responding to an unrelated alarm at a parking lot, found the vehicle with Arjun inside. He was taken into custody without incident.
"The subsequent investigation indicates that Arjun had recently been demonstrating concerning behaviour, including using the internet and ChatGPT to make searches for theoretical ideas or fantasies regarding killing his family," a statement by the Middlesex County District Attorney's Office said.
Arjun was expected to be arraigned in Lowell Juvenile Court on Wednesday. Since the Juvenile Court does not have jurisdiction over a murder charge, he will be arraigned on that charge and the related assault charges in Concord District Court later.
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