My CERT team was once called out to assist searching for an elderly Alzheimers patient. The police had been through the house twice. Actually it was the same two cops who had been through the house twice.
"He's not in there. We looked twice."
After a three hour search we finally sent two CERT members in to re-search the house. We found the old man sitting in a closet hiding behind some clothes.
Similar to a local gay murder in which they played the strangling game. The one guy started breathing very poorly so the other stuffed him in a crawl space, still alive, and stole his car to get home.
Several police departments were involved, where they started, where the guy lived and died, where they stopped on the way. The smartest cop in the bunch kept telling the chief of the town where the house was to search the house again. They didn’t.
I think the flies gave it away after a week.