Tomas

 is a traveler living in the Mojave Wasteland in 2281.

Background
Tomas approaches the Courier after getting into a gun battle with Jacklyn who had been his traveling companion. It is implied that Jacklyn attacks him for his "lucky necklace" which turns out to be made of 7 Sunset Sarsaparilla star bottle caps Alternatively, Jacklyn may actually win the fight and run over to you, saying how Tomas tried to kill her. She will have all nine Sunset Sarsaparilla star bottle caps on her (the two she had initially and the seven from Tomas's necklace).

Other Interactions
If you have Terrifying Presence Perk you can get the necklace for free and not lose Karma. "Confirmed" AngeLG3E 19:59, November 6, 2010 (UTC)

A speech challenge may be passed in which he is convinced the bottles are bad luck, and gives them to the courier. Tomas may also be killed or pickpocketed for them, and looted for a low grade weapon and armor, as well as "Tomas's Journal".

If you don't want to suffer any karma effect from killing Tomas, right after he initially speaks to you he will walk by an old car. If you shoot the car, and time it right he may have an "accident" in the resulting explosion. Alternatively, failing the speech challenge and demanding the necklace will result in Tomas turning hostile, giving the player free reign to take him down.

Appearances
appears in Fallout: New Vegas.