The suspect who allegedly lit a sleeping passenger on fire inside a Coney Island F train sat on a bench and watched her burn to death in a shockingly brutal killing just three days before Christmas.
In an horrifying video obtained by The Post, the man calmly looks on as flames engulf the unidentified woman who stood inside the door of the subway car as the train idled at the Coney Island-Stillwell Avenue subway station at around 7:30 a.m. on Sunday.
A transit cop walked by the open door, and seemed to pull out his radio and say something as his continued down the platform.
After the cop walked past, the suspect — who police say stands about 5-foot, 6-inches tall, weighs around 150 pounds and is about 25 to 30 years-old — got up as if to walk away before the clip cut off.
The suspect was last seen wearing a gray hoodie, jeans, brown boots and a dark knit hat with a red band, the NYPD said.
Authorities are offering a $10,000 reward for info that might lead to his arrest.
Investigators believe that the woman was sleeping when the man — who was sitting across from the victim at the time — got up, walked over and tossed a match on her, sources said.
Cops extinguished the fire and EMS declared her dead on the scene.
Liquor bottles were laying around the victim, though it wasn’t clear if they played any part in the blaze.