Correction, please. His name is Robert Francis O'Rourke. He calls himself Beto as an adult so he can pretend to be a Mexican in Texas. He was originally called Beto as a very small child so his family would not confuse him with his grandfather.
How grownups could not tell the difference between a grown man and an infant is beyond me, but apparently it was an issue in that family.
Time for Ted to finish him off.