even though teresa mayfield's husband scott had been very cooperative with investigators, they wonderedthere was something he wasn't telling them. here again with "secrets in a small town" is keith morrison. >>> it's a funny thing about secrets. they can only stay hidden for so long. especially in a little place like moundville. and it didn't take very long for sheriff ellis and boyd to stumble across more. >> scott had a young lady to come pick up the boys. >> it was only later when the fog of grief lifted that one of teresa's relatives wondered to police who was that woman hanging around the day teresa died? ellis and boyd tracked her down and what they discovered, well, that changed everything. or seemed to. the person they were talking to was scott's mistress. >> she was under the impression thttas not married at that time. >> what did you make of that? >> we knew that wasn't correct. >> a love triangle, jealous home wrecker kills wife, claims husband? no, not even close. scott's girlfriend thought his marriage was over. his divorce finalized. >> what was her reaction to getting the

scott mayfield. >> she was a loving wife, loving mother. >> the man who heaped praise on his dead wifeby his side was, according to dawn, the architect who designed her death, her revelation finally made sense of a trail of disturbing stories the investigators had been running down for months. >> we had one guy that worked around there in moundville, said a fellow offered him $500 to kill his wife. and a little while later we got a call from another guy's son saying that his daddy wanted to talk to me scott had approached him about killing his wife. >> his response to scott was get a divorce. that's what divorces are for. >> and then a third man told them a story. >> he had told us that scott mayfield had hired him, had given him $15,000 to kill his wife. he did not have any intentions on killing her. he just wanted the man's money. >> what's the old saying, two is a coincidence, three is a pattern? which is why even before dawn told her grisly tale on tape, in fact, on the same day dawn was arrested, a warrant was also issued for scott. kelsey was outside mowing the lawn when she saw