A Pair of Dead Desperados, I

A Pair of Dead Desperados, I is an unmarked quest in Fallout: New Vegas.

Detailed walkthrough
A remarkable thing to be seen when entering the Vikki and Vance Casino in Primm, is an old getaway car in the middle. It once belonged to Vikki and Vance, two "notorious" robbers. Walk around the car, read the plaques, and take a look at their costumes. Primm Slim can also give you some background.

To initiate this quest, investigate the weapons display, inform Primm Slim that the weapon is gone, then pass a Science check of 50 to get past the Primm Slim corrupted memory block. This retrieves a transcript from Slim about a couples' conversation which points towards Westside. To pick up part II of this quest, head north of New Vegas to the large shack which is Wins hideout.