Problemo is DA has no real motive and still doesn't know how it was pulled off in such a stealth manner. Only that it's him. So you're expected to make this huge leap.
It's difficult to imagine anyone today being so bold to enter someone's home and snatch a kid without alerting someone. Same thing in Salt Lake. It leads me to conclude that security in these homes is real loose--parents stoned, parents drunk, doors open, people milling around. Not like when I was a kid.
It sounds like Marc Klass is persona non grata at the Smart house. He has been told to stay away from the Smarts. I'm not surprised. He has been acting like an intrusive jerk in this case. I hope it's not that he wants to achieve fame like John Walsh did.