six weeks into the investigation detectives had an audiotape, texts, letters, and diagrams. fragments of leads pointing in wildly different directions. to pete moore or a drug cartel or crazed assassin. and now they had another lead to work on. >> someone made an anonymous call to the sheriff's department and said, the caller basically stated, you need to be looking at paul moore, and. >> paul, not peter? >> paul not peter. >> for all the produce that comes rolling out of colusa county, california, it's population of humans is small. just 22,000. everybody seems to know just about everybody here. so when a would be anonymous tipster called the sheriff's office, it turned out he wasn't anonymous at all. >> the detective who took the call, recognized the voice. and phoned him right back about. >> hey, you need to come in and