>> reporter: kay and becky even joined weight watchers together. and the two of them were pretty competitive at the weight watcher thing, huh? >> yes, yes. >> reporter: who's up a pound, who's down a pound? >> yes. every day. >> reporter: and one day in march, 2009, began like any other. kay, the little league mom, got up to take derek to school, and becky, the mother of five, left her house a few minutes later to drop off her kids before her work day began. all very routine. until 8:30 a.m., when contractor mitch cozart showed up to do some maintenance work on kay's back door. you're coming around the corner. you lift up the latch gate. and tell me what you see. >> okay. when i walked back into the -- into -- where the back door was, it was -- the glass was busted out. and -- i -- i immediately knew they had been broken into. >> reporter: did you put your head inside the house and look around or call -- >> all i did -- >> reporter: -- call out her name. >> i just -- i just stuck my head just inside just enough to holler out for her. and i -- i didn't get no response. >> reporter: he tried calling kay's phone. no answer there either. he came back out front and noticed a young man sitting on a rock across the street.