It's not exactly vapid speculation. It's what's been reported by Fox news. I'm not sure how trustworthy their source is but here is the quote:
>“It was because of his kids,” one of the two agents recalled. “He’d do anything for his kids. He didn’t want to go away to prison and leave them. That’s how we got him.”
>“It was because of his kids,” one of the two agents recalled. “He’d do anything for his kids. He didn’t want to go away to prison and leave them. That’s how we got him.”
http://www.foxnews.com/scitech/2012/03/06/exclusive-unmaskin...