Q: 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.
Passage: The film, narrated primarily by McKinney herself and supplemented by other interviews with primary characters and experts, is presented by animated headlines, newspaper photos, and brief televised news reports from the time of the case. McKinney details her upbringing as a charismatic young beauty queen with a self-reported IQ of 168. In search of a "clean-cut, all-American boy" for a potential husband, McKinney is introduced to Kirk Anderson, a young Mormon man on the eve of his  religious mission. McKinney states that she and Anderson fell madly in love and that they were engaged to be married, but that she mistrusted the Mormon church and its hold over Anderson, declaring the church to be a "cult" that had "brainwashed" him. Former Mormon turned activist Troy Williams offers insight into Mormon practices, beliefs, and attitudes to explain how Mormonism might seem cult-like to one not raised in the religion.
When Anderson was sent to England on his mission, McKinney, believing that the church elders deliberately separated them, recruited a pilot (Jackson Shaw, who appears in interviews) to fly her, her friend Keith "K.J." May, and a hired bodyguard named Gil Parker to England on a "rescue mission" McKinney framed in terms of a romantic caper. Upon arriving in England, McKinney allegedly revealed items such as handcuffs, chloroform, and a fake handgun, causing Shaw and Parker to fear they might be participating in something illegal. Both men immediately returned to America, leaving McKinney and May to continue alone.
A:
What are the last names of the people that went back to America?