detectives were looking into whether craig rideout had been murdered. craig's disfigured body, his cell phone, still in his pocket. with it, police quickly started connecting dots, and they were about to get another tip, one that would lead to two unlikely suspects. here again is andrea canning with "devil's bathtub." >> the case of the missing dad was now a murder investigation. investigator dave bolton had been up for 36 hours working two critical crime scenes -- the basement, where craig was likely killed, and the woods, where his body was found. and now, the investigator was about to be called to another location, that place called devil's bathtub. it's a secluded pond set deep in a 2,500-acre park. what is going on here? why are you called to the scene? >> there was some walkers in the park that saw something that they thought was suspicious. they saw a couple of males in the park in a car parked up in the parking lot, and they saw what they believed to be garbage bags getting thrown out. >> and why was a homicide detective getting a call about a ca

. >> craig rideout, dad of seven, cared deeply about his kids. >> he was a loving man, provider, warmt was puzzling and alarming when he vanished. >> she said, craig is not here. i said, that's weird. >>