>> i did look for the presence of blood on that bathrobe, but i did not find any. i was surprised. the whole house was searched, anything for weapons, the whole house was fingerprinted. dna swabs, any kind of blood or anything for touch dna was swabbed in that house. >> but investigators found nothing, no murder weapon, bloody clothing or any other evidence of the crime. inside michael's truck, however, investigators found a hidden compartment under the back seat. there they found a treasure trove of forensic evidence. >> michael ratley's truck turned out to be the jackpot, if you will, for our case. >> it was almost like it was packaged for them to find because it was just that easy. >> there was a hammer, a box cutter, a piece of burnt electrical wire, and several pairs of gloves. >> michael ratley said he was shocked that these items were found in his truck.