Mumbai train incident: Railway cop planned to kill his senior. Here's how the deadly attack unfolded

A Railway Protection Force (RPF) constable opened fire on the Jaipur-Mumbai Central Superfast Express on Monday, resulting in the death of a senior officer and three passengers. According to officials, Constable Chetan Singh shot and killed his escort duty in-charge ASI Tika Ram Meena in the running train. He then went to another coach and shot dead three passengers. The RPF constable has been arrested. Watch the video to find out details.