Question: is criminal minds killing of jj?
Answer: 'Criminal Minds' Boss Previews JJ & Reid, The Chameleon & How It Will End. Exec producer Erica Messer and star Joe Mantegna tease what's to come in the final 10 episodes. But before Lynch kills Grace, he helps her break out of prison, and in the process, she shoots JJ (A.J. Cook).