cadaver dogs, but nothing more. just down the street from chris' house, detective bryce angel of placentia pd who had been assigned to work with larry was listening and keeping an eye on the action. >> so you're watching this while the interview takes place? >> yeah, i was sitting ten houses down. once she left the area, we were in business. >> what happens? >> later that night he was seen coming out of his house and going into the garage. lights go on, and we're talking 3:00 in the morning. it was clearly a sign of somebody who couldn't sleep. >> detectives were sure they'd rattled their suspect. the next day they trailed chris when he left his house. >> at some point it became apparent that he knew we were following him. >> they broke off surveillance. and brought chris in.