NEW DELHI (AP) — The body of a man who died in a New Delhi jail while in the midst of a trial for rape has been released to his family after a post-mortem exam.

The mother of Ram Singh, the man accused of driving the bus on which a 23-year-old student was gang raped in December 2012, cries as she speaks to journalists inside the family's home in New Delhi, India, Monday. Pic: AP.

Journalists outside the All India Institute of Medical Sciences saw the body of Ram Singh loaded onto an ambulance and taken away accompanied by his family.

The 33-year-old was found dead in his cell at Tihar Jail early Monday. Authorities say he killed himself, but his family says he was killed.

Singh was on trial for the gang rape and fatal beating of a woman on a New Delhi bus. Four other men and a juvenile remain on trial for the attack, which horrified India.

A magistrate is investigating Singh’s death.