In a 500-odd page chargesheet submitted against IIT-Bombay student Arman Khatri (19), accused of abetting fellow student Darshan Solanki’s suicide, the special investigation team (SIT) of the city crime branch said that days before his death on February 12, the victim had written to someone saying that while he had chosen a college away from home due to the unpleasant nature of a close relative, but he was once again depressed as he unable to study and score good marks.