MANHATTAN - Authorities are questioning a suspect linked to the death of a man who was shoved onto subway tracks Monday and hit by a train.

In police surveillance video, the suspect can be seen having a verbal dispute with the victim, 58-year-old Ki-Suck Han, of Queens. The incident happened at the Q train platform at 49th Street and 7th Avenue.
The suspect eventually pushed Han onto the tracks, where he died trying to climb onto the platform.