Learning Detectives News Today

>> welcome back. im tamron hall. here is keith morrison with more of our story, "the interrogation." >> by all accounts, including his own, robert davis was a mamas boy. because of his child-like ways perhaps or lis learning -- his learning detectives, maybe. >> hes easy to play. hes like me. hes got a kind heart. hes gullible. >> robert seemed to need his mother, sandy, to protect him from the big, bad world. while he took care of her when she was attacked by chronic illness. medication for whi...