>> where peggy worked? >> where peggy worked, yes. >> so peggy knew all about this? >> she helped him. >> for five months bill hill says he struggled under the weight of that confession and then in late july 2004 his conscience finally got the better of him. >> i decided to make my first call. >> your first call? >> to whidbey island. >> to the police. >> yes. to the island county sheriff's -- i felt guilty i was giving up my friend, but i knew something had to be done. >> within days of that call detectives mark plumberg and mike beach were sitting face-to-face with both their tipster bill hill and their suspect, the artist formerly known as buck naked. coming up, the interrogation gets tough. >> you know what you told bill. the guy is falling apart over the guilt he's carrying around because you told him what you