New York City police have a person in custody who is suspected to have set a woman on fire in the subway early Sunday and then watched from a bench as she became engulfed in flames and died. Surveillance video showed the man calmly approach the woman,

A woman was tragically set on fire aboard a New York City subway train by a man who later calmly watched emergency responders extinguish the flames. Police arrested the suspect hours later.

Police said an unknown male had approached the woman, set her on fire, and then left the subway car around 7:30 a.m.