its not the same robot each time.
if you kill victor in goodsprings, you still meet him in vegas.
he is a program that can be remotely moved into any securitron, he just enters which ever securitron is closer to you.
when he first approaches you in the strip he is victor, a second after he talks to you, he becomes a regular securitron.
his face and personality then pop up into the securitron next to the Lucky 38
