Why did he do it? Accused killer's neighbors left to wonder

A small pickup truck remains parked outside the burned-out home where a gun-toting survivalist is suspected of killing his wife and daughter several days earlier and then setting the house on fire Friday, April 27, 2012, in North Bend, Wash. Peter Alex Keller may be holed up in a self-made fort not far from where Seattle's outer suburbs give way to the vast recreational playground of Cascade Mountains. Police expect more people to hit the nearby trails this weekend, and deputies are warning them to steer clear of Keller if they think they see him. (AP Photo/Elaine Thompson)