Yeah that's him. I killed him and looted his body. I just like the armor plus the reward is crap for getting them all but I will collect the caps anyway. I just didn't want to kill him if he was needed for the Sunset Sarsaparilla Star Bottle Caps.
In all my games I let him go although I thought, he might have some caps. In my current game a custom companion ("Misty") shot him, right after he finished talking to me. Normally she does not shoot innocent people; heck, she opens fire only when something is about to attack.
Now I ask, if this guy is really the nice advisor or if he tries to pickpocket me, which might be seen as "attack" and thus, made my companion shoot.