The Rippers were a gang from the LA Boneyard, prone to violently attacking anything and anyone not related to them. They initially lived where the mother deathclaw is in the Boneyard, as evidenced by the "Ripper!" movie poster outside her house hutch. They had a fortified building with traps and landmines around it where they took prisoners to be tortured and killed. They were arch-enemies of the Blades. They were probably either killed by the deathclaws or moved somewhere else when the deathclaws took over their fortress, until they eventually were exterminated by the Gun Runners who took over the fortress and started a business there, surrounded by deadly toxic moat.
The leader of the Rippers was called Tangler, whose characteristic feature was a cybernetic hand. Interestingly, Morpheus, leader of the Children of the Cathedral, also used to be a member of this gang.
The Rippers were initially to appear in Fallout, but later removed from the game. They are mentioned in the dialogue files of some Fallout characters, including Nicole and the Blades. Tangler's cybernetic hand is an unused item in the Fallout and Fallout 2 data files.