police investigation, for contaminating some evidence but michael said it's no problem, you can be here. >> the detective told me this is not a crime scene and i can do whatever i want. >> it baffled me that this was not a crime scene. it baffled me they even let me in there. >> there is no clues there, is there? >> none. >> though miller and watts fail to find any evidence of foul play, what they did find suggested the mcstays never planned to run away. >> they don't go anywhere without their double stroller. >> and the kids' two little laptops. >> this is significant, randi, they wouldn't leave on a planned trip or go anywhere without the baby's stroller. >> miller and watts left the house that day more convinced than ever that something very bad had happened to the mcstays.