Little Buster claims to be "one of the greatest" bounty hunters there is by collecting bounties of the FiendsNight Terror and Jackson, despite only being in the profession for a little "over a month". He likes doing various jobs, yet gets bored of them quickly, especially if the jobs turn out to be associated with getting up early in the morning. In a way, he's just trying to find his place in the wasteland.
Killing Little Buster will have no effect on Karma, but may still cause witnesses inside Camp McCarran to become hostile.
After the completion of Three-Card Bounty, he may be found dead inside Freeside on the train tracks of the town's north gate, next to the Old Mormon Fort. You need to wait at least 24–48 hours for his body to spawn at Freeside.
Little Buster's corpse is actually a separate non-player character. Because of this, it is possible to obtain two copies of his unique weapon by pickpocketing him while he is alive, then looting the duplicate from his corpse.