captain in that particular ward. >> and he also was at times a clown. >> pogo the clown, as a matter of fact, was his name. he used to go out on weekends and entertain kids. >> he has a picture on his wall standing next to rosalyn carter. to hear him tell it, he was a really important guy. >> but he also made disturbing statements to the surveillance team. what did he say? >> a clown can get away with murder. >> that's a bizarre statement. >> not unless you're a murderer and you want to play with your victim. >> still, gacy acted as if he had nothing to hide. even inviting the officers into his home. >> gacy came out and said, look, it's really cold out here, do you guys want to come in for some coffee? they said, sure. in they went. and one of the detectives said, listen, can i use your bathroom?