Investigators say the two men were seen arguing on the platform. Moments later, 58-year-old Ki-Suck Han, of Elmhurst, was shoved onto the tracks by the suspect and struck by a southbound Q train. Police describe the suspect as a black male with dreadlocks, last seen wearing a dark jacket, a gray t-shirt and a cap.
The victim was transported to a nearby hospital where he was pronounced dead.
No arrests have been made.