Unforgettable

Carrie relies on her memory to locate a missing weapon

Saunders shoots a boy in self-defence, but the absence of a weapon suggests the victim was unarmed. When the deceased's father arrives at the precinct, taking hostages and creating a stand-off, the suspended officer gives himself over to the negotiator in a bid to defuse the situation, while Carrie relies on her remarkable memory to unlock the secret of the missing gun and clear her colleague's name