'In no way would he be a threatening person': People who knew Alex Pretti speak out

Joining us, Dr. . Asma Shakat. Alex was her former research assistant.Also joining us by phone as Alex's neighbor, Susan. I'm going to start with Susan on the phone because you were closest, physically closest to Alex in this moment. And I know you don't want to give us your last name or appear on camera because you're worried about your own safety, which in itself is remarkable and unsettling.But tell us a little bit about what Alex was like only a few days ago. Well I would agree with Alex's parents and I ...