Detailed Instructions: In this task, you're given passages that contain mentions of names of people, places, or things. Some of these mentions refer to the same person, place, or thing. Your job is to write questions that evaluate one's understanding of such references. Good questions are expected to link pronouns (she, her, him, his, their, etc.) or other mentions to people, places, or things to which they may refer. Do not ask questions that can be answered correctly without understanding the paragraph or having multiple answers. Avoid questions that do not link phrases referring to the same entity. For each of your questions, the answer should be one or more phrases in the paragraph, and it should be unambiguous.
Q: Passage: Serving four years of his ten-year sentence for armed robbery, Carter "Doc" McCoy is denied parole from a Texas prison. When his wife Carol visits him, he tells her to do whatever is necessary to make a deal with Jack Beynon, a corrupt businessman in San Antonio, to free him. Beynon uses his influence and obtains Doc's parole on the condition that he take part in a bank robbery with two of his henchmen, Rudy and Frank. Frank kills a guard, then Rudy attempts a double-cross, killing Frank and drawing on Doc, who quickly reacts and shoots Rudy several times. Doc takes the $500,000 ($3.0 million today) and leaves. Rudy, having secretly worn a bulletproof vest, is only wounded.
Doc meets with Beynon, who attempts a double-cross before Carol shoots and kills him. Doc realizes that Carol had sex with Beynon to secure his parole.  Doc angrily gathers up the money and, after a bitter quarrel, the couple flees for the border at El Paso.
A bloodied Rudy forces rural veterinarian Harold and his wife Fran to treat his injuries, then kidnaps them to pursue Doc and Carol. Beynon's brother Cully and his thugs also pursue the McCoys. At a train station, a con man swaps locker keys with Carol and steals their bag of money. Doc follows him onto a train and forcefully takes it back. The injured con man and a train passenger – a boy whom Doc had rebuked for squirting him with a water gun – are taken to the police station, where they identify Doc's mug shot.
A:
Who is the henchman pursuing the bank robber and his wife?