>> he said he was rebuffed. >> he said his ex-wife told him not to come. she didn't stop him. he didn't knock on the door and she didn't throw him out. >> i think that's what's going on here. perhaps even though he was reading messages from nancy, his ex-wife, kind of like, stay away, i've got this under control, which she didn't. when he knew that his son, adam, was actually on gun ranges, that there were guns in the house, that that's the way that she felt she could connect with him, he knew something was fundamentally wrong. i think with all parents, and we have to put a human face on this, with parents who see something like this going on with their beloved child, they go into denial mode. they just stay away. they feel they can't control it. >> someone has to tap down those who want to vilify this man. in hindsight, this is a breeze. i think you have to ask these questions. who was adam lanza, a troubled