Shades of Norman Bates

Well, to be fair, this guy didn't kill anybody (that we know of), but he did something incredibly creepy nonetheless:

A German left his dead mother seated in her favorite armchair at their shared home for two years because he could not face organizing a funeral, police in the southern town of Fuerstenfeldbruck said Friday.

The woman died of natural causes in the chair in July 2005 at the age of 92, a police spokesman said. A doctor called to the scene at the time gave the son a death certificate but he did not register the death.

There's no word in the article about whether or not the guy had been seen running around in his dead mom's clothes, but they probably would've mentioned that if he had.