McMurphy

 was the Great Khan leader living in Boulder City in 2281.

Background
He was the leader of the Great Khans hired by Benny to retrieve the package from the Courier and is mentioned in Manny Vargas computer terminal. After his death, Jessup, the next highest ranking Khan took over, this is when the Courier finds them in Boulder City. His body is found lying on a dirty mattress in the Great Khan's headquarters in Boulder City. It is unknown how he died, although it was likely that he was killed by Benny after he confronted him.

Interactions with the player character
McMurphy worked with a Chairman named Benny and fellow Great Khan Jessup to intercept the Platinum Chip from the Courier. In the Fallout: New Vegas intro, McMurphy wanted to kill the Courier quickly, but Benny insisted he look his victim in the face when he died.

Appearances
appears in All Roads and Fallout: New Vegas.