Malcolm Case killed his father, brother, and a cousin on a safari in Africa in order to get a great fortune by doing that. Case was given a life sentence, and it was his opinion that it was Charlie's fault, since his was the decisive testimony. He spent eleven years in prison.
After escaping, he spent over six months preparing his revenge on Charlie. He took two other life sentence inmates with him when he escaped prison, and in exchange they helped him with his scheme to kidnap the Angels and kill them one at a time until Charlie surrendered himself.
Case was killed by a tiger while he was hunting the Angels.