The city of Buckaroo, Oregon, is fictional.

In Nailbiter, Buckaroo is the alleged birthplace of many serial killers.

The Buckaroo Butchers Year Book (in alphabetical order)

• Book Burner
• Clown Car Killer
• Crossbones Killer
• Good Samaritan
• Grave Digger
• Lucha Eliminador
• Mister Fatal
• Nailbiter
• Terrible Two
• The Butcher of Buckaroo
• The Hatewatcher
• The Lucky 13 Assassin
• The Silent Movie Killer
• The Whistler
• WTF Killer
• Y2K Killer
• ? (Who's next?)

There is no further information and it is not mentioned whether this list is complete or not but it does end with the question mark. Also, please not all of these killers are as fictional as the city.