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.

This perk is required to get one of the Lying, Congressional Style books.

It is the Evil equivalent of the Lawbringer perk, although somewhat worse, considering you will not be killing as many good characters as evil, unless you choose to kill entire towns, which will also kill traders, so your new bottle caps will be useless!

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.