The Westchester County District Attorney's Office says it will not file charges in the case of an Italian student who died at a Thornwood boarding school, according to the Mount Pleasant police chief. Police say he died by suicide.

The school says Mandia had been expelled three days earlier for academic reasons. According to police, he was in solitary confinement and couldn't leave without permission. Mandia's parents had arrived in New York to see him the day his body was found.