We found him. He'd given a photo to my mother of this mansion not far from Quantico, and that's where he was. I found him in his office... he had a bomb strapped to him. I tried to talk him down, tried to make him forgive himself for the death of his family but... it didn't work. He blew himself up. [Needless to say, Reid got out of it okay.]
We found his daughter in the house. He'd kept her there for two years and no one knew - she'd been in foster care before, and they just assumed she finally escaped for good.