A court on Tuesday remanded Railway Protection Force (RPF) constable Chetan Singh in the custody of Government Railway Police till August 7 for allegedly shooting dead his senior colleague and three passengers on a moving train. Seeking his custody, the police told the court that the mental health test of the accused constable was yet to be conducted and that he had not been cooperating with them.

A senior police officer had earlier said that the 33-year-old accused was very short-tempered. Singh was produced before a magistrate court amid tight security around 1.30 pm. As they took Singh to the local court in Borivli from the police station, GRP officials used T-shirts and shirts to cover the windows of their vehicle to shield him from the media glare.