Police are looking for a man they say tried to throw an 11-year-old boy off a moving subway train.
They say the man in this sketch pulled the boy between cars on a downtown 4 train in Manhattan last Wednesday afternoon.
He then allegedly picked him up, shook him and told him he was going to toss him off.
The boy bumped his head on the side of the car before a passenger was able to pull him back in.
Cops say the Good Samaritan got off the train with the child at Union Square, while the man stayed on.
It's unclear what led to the confrontation.