It's the second subway murder this month in New York City.
The footage, released by NYPD on Friday, shows a woman described as "mumbling," Hispanic and heavyset — about 5 feet 5 inches and wearing a blue, white, and gray ski jacket.
She is suspected of pushing an unidentified man on the subway tracks at the 40th Street station of the 7 line in Sunnyside, Queens, around 8 p.m.
Earlier this month, Naeem Davis was arrested on suspicion of pushing 58-year-old Ki-Suck Han to his death — a moment the New York Post now famously captured.