"I never foresaw a problem. If I had I would have stopped it," David Webb said, before bursting into loud sobs during a phone interview with The Associated Press. "I just can't believe I lost my wife and son in one day. ... I don't know. I wish I did. I wish I had some answers, but I don't. I waited all my life to retire with my wife, and now I can't. That's all I know."