my neighbor, he lives two floors below. >> his good friend and husband of the irreplaceable bianca. >> this is definitely somebody we want to talk to. >> carriger arrived unannounced and almost before he could ask a question, he said, chris launched into a story about ken dolezar, claimed the man was so paranoid he wanted the man to buy a prepaid cell phone so he could communicate in complete privacy. to carriger the story seemed too reversed. >> covering, trying to account for things we knew. >> i see. odd. then as the interview went on, he said chris' voice began to sound familiar. the voicemail that police believed helped lure ken to his death. >> hey, ken, this is robert. >> to me, that was chris' voice on that phone. >> the detectives pulled out a search warrant. bianca was home when the police