[nickcarraway]

They had that case on Forensic Files. They fed a pig carcass through the wood chipper to estimate where the remains would go. (in this case the edge of a creek) The culprit also left some of their mail at the scene of the crime, I think.

[cynwoody]

The culprit also left some of their mail at the scene of the crime, I think.

That's true. When they located the scene, one of the first things Dr. Lee found was a scrap of paper with the victim's name and address. So, maybe the corpse was fully clothed with a letter in a pocket. Or maybe the killer decided to shred some other stuff along with the body. From Chapter 10:

In the end, Dr. Lee said, "Our team's efforts at Lake Zoar eventually led to the discovery of 2,660 strands of blond hair, 69 slivers of human bone, 5 droplets of human blood, 2 teeth, a truncated piece of human skull, 3 ounces of human tissue, a portion of human finger, 1 fingernail, and 1 portion of toe nail."

The shredding took place 19 November, and Dr. Lee and his team began examining the site on 30 December.