>> not really. >> okay. >> the detective also interviewed skyler watty who said right before leaving for the party tom sent the two boys outside to go start up the truck. >> he said that he'll be out there in a little bit. >> okay. >> i don't know what he was doing in there, taking a shower or what. >> like heath, skyler couldn't recall anything unusual about that day either. and then suddenly -- >> yeah. when we were outside during across the barn there was like a big crash, like way in the back of the house. >> like what did it sound like? >> it sounded like breaking glass and a bunch of things falling. like a vase just -- >> it was a loud sound. >> yeah. >> detective carbon showed skyler a drawing of the foley farm and ask skyler to place an x where he believes the sound originated. >> like somewhere around here? >> skyler placed the "x" just outside the first floor bathroom, the same room where dar foley had been shot. >> it appeared to us that skyler watty may have heard the shotgun blast that killed dar foley. >> detective carbon was also thinking this. the one other person in

. >> detective carbon believed 10-year-old skyler watty was an ear witness to the shotgun blast thatilled dar foley. if true, it meant dar was murdered earlier than originally thought. more significantly, it meant tom foley was still in the house when the murder occurred. >> that lead was huge. that was very, very important. >> if tom foley was in that house and pulled the trigger, the question remained why? the answer said carbon is quite simple. >> murder for money? >> potentially, yes. >> money in the form of an insurance policy. >> i think that he wanted out of the marriage and did whatever he needed to do to make sure that that happened. >> if he got $310,000 in insurance money and got out of the marriage, so much the better? >> yes. >> the evidence against tom foley was circumstantial but compelli compelling. >> you think he faked that burglary? >> yes. >> and killed his wife? >> yes. >> they never found the murder weapon. >> what do you think happened to the gun? >> i wish i knew. >> even without it in march of 2009, one month after dar foley was gunned down in her shower, sta