Plot hole: In the scene after the bank job where Charlene waves Chris off alerting him of the setup, Chris drives away and is stopped by the cops to verify who he is. He has a fake ID and they let him go. The police CLEARLY know who Chris is and what he looks likes for most of the movie but somehow, those cops don't have anything with Chris' name and face on it?
Visible crew/equipment: When Michael Cheritto comes out from the bank just before the shootout scene and gets on the car, a cameraman and a crew member on his right side opening the car door are reflected on the windows.
Continuity mistake: Vincent's hair (bangs) is at least 3 different styles in the coffee shop scene.
Answer: Waingro helped Van Zandt track down Trejo. Waingro then tortured Trejo and threatened his family if he didn't give up McCauley. With his back to the wall, Trejo gave Waingro and Hugh Benny the details of the bank heist, but Waingro killed Trejo's family anyway and beat Trejo almost to death. Benny then gives the tip to the police on Van Zandt's order.
BaconIsMyBFF
I wonder how Trejo was tracked, I don't remember his name being revealed during Waingro's time with the crew, or any other information.
Well, we never see the crew prior to their first heist. Trejo could have given Waingro his name during the planning of that heist.
BaconIsMyBFF
Waingro met this crew only once. How would he know who Trejo is or where he lives? Right before the heist, Trejo is asked to mislead police away from the heist.