the man who lived in the guest house and showed up at the crime scene within minutes of the officers. and, who was the first person to point the finger at steve. >> but the fact that law enforcement viewed him in a different way that they viewed steve democker, that they saw jim knapp as a friendly witness, and they see steve democker as a suspect, frames the way that they investigate. so anything having to do with jim knapp becomes excusable, explained, it's just not something you have to worry about because he's not our guy. >> reporter: and yet? look, for example, at these crime scene photos of carol's kitchen counter. this magazine was sitting on it, and slipped inside, between the pages, were some financial documents that were printed the very day carol was murdered. >> that became really important because his thumbprint is on those financial documents. >> reporter: what was jim knapp