Contract Killer

Contract Killer is a Fallout 3 Perk.

Once you have the Contract Killer perk, any good character you kill will have an ear on their corpse. This ear can then be sold to a certain person (whose identity is disclosed when you take the perk) for caps and negative Karma.

The "certain person"

 * You will get a note from Littlehorn and Associates telling you to go to Scrapyard.
 * Littlehorn & Associates resides at the Scrapyard Office, and will pay 15 caps per ear.

Bugs

 * The note you receive indicates that you need to go to the east end of the Scrapyard, but you must actually go to the south end.