>> i can't really put my finger on anything. i just have a gut feeling that there's something about this one that, you know, there's more to it than just the typical missing person. >> just a few hours later, a motorist ten miles away spotted a fire in the parking lot of an abandoned building. when he got closer, he was horrified to see what looked like a human body. >> the upper portion of the body was engulfed in flames. an accelerant was believed to have been used, like gasoline. >> the victim, wrapped in a blue tarp and a blanket, was clearly a large, white male with brown hair. dental records confirmed it was david nixon. >> looked like at some point, someone may have tried to stuff the body down the drainage ditch. the body wouldn't fit.