There hasn't been anything revealed about Victor's history, except he has known Razor Eddie for some time.
Throughout From Dusk Till DawnEdit
In From Dusk Till Dawn 2: Texas Blood Money, he is seen as a bat getting hit by Luther and is wounded. When Luther and Razor Eddie come back to the car, he is seen all bloody and weak. He and Razor Eddie then bite Luther multiple times as payback.
|From Dusk Till Dawn: Film Series|
|"From Dusk Till Dawn":|
|"From Dusk Till Dawn 2: Texas Blood Money":|
|"From Dusk Till Dawn 3: The Hangman's Daughter":|
|" From Dusk Till Dawn (Video Game)":|