>> there was heavy burning in the fire pit. there was the smell of fuel. >> but something else bothered investigators. >> apparently otto didn't mind the police looking around but the cadaver dogs were another story. >> he became very upset when the dogs arrived. it appeared to me he was worried that we were going to find something. there is a woodchiper on the property. there's history of cases in the past where people would use wood chippers to dispose of human bodies. >> at this point convinced he cooperated as much as he needed to, otto asked police to leave. >> you know what? i need you to wrap this up. >> all right -- >> now. >> when someone grants a right to search their property, they are entitled to revoke that, but by this time the cadaver dogs had already picked up a scent in the fire pit. >> one of the dogs found a chunk of flesh that we -- it appeared