 Al, after informing Chief Deputy District Attorney Bloomenfeld, goes to the island, where it is revealed that Quinn (nicknamed "Skinny") was once part of Bobby's street gang, and shot a rival gang member.Brennan appears to be hunting down the gang's former members on Quinn's orders to erase Quinn's past, to fulfill his ambitions to run for NY State Attorney General.Brennan has no choice because Quinn holds an abuse of authority charge over him.