El Diablo

His real name is Miguel Vargas, but he calls himself "El Diablo", and is from Denver. He went crazy one night and killed six people in two different homes. They call him the "Vampire Killer" because he bites his victims on the neck during or after killing them. Last anyone heard, he went east. Bob the Bounty Hunter in Hoover Dam has a bounty out on Diablo's head. When he dies he drops a severed head item. Bob knows a guy who was going to look for Diablo out in Dogtown, but he never came back... El Diablo got him.

Appearances
El Diablo was going to appear in Van Buren, the canceled Fallout 3 by Black Isle Studios.