RPF constable forced passenger to walk at gunpoint before shooting him dead inside train

RPF constable Chetan Singh, who allegedly killed his senior and three others inside the Jaipur-Mumbai train, forced one victim to walk at gunpoint. "Singh forced Syed S, a passenger travelling in [coach] B2...to walk at gunpoint up to the pantry car where he shot him dead. They crossed coaches, B2 and B1...while other passengers watched," a GRP official said.