Destroyer

LAPD detective Erin Bell arrives on the scene of a John Doe murder and informs the responding officers that she knows the identity of the murderer. At the police station, Erin receives a $100 bill stained from a dye pack in an unmarked envelope. Using a contact at the FBI, she confirms that the bill is from a bank robbery committed by a California gang sixteen years prior that she and her former partner, FBI agent Chris, were embedded in as undercover officers. She tells her superiors that she believes the bill to be proof that the gang's leader, Silas, is once again active.