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: Marcus Templeton is a thirty-year-old, unmarried security guard who describes himself as "a lonely, desperate man." He works at night and spends his days looking at pornography and takes to peeping into windows in the hopes of seeing naked women. Marcus is slightly overweight and spends a fair amount of screen time obsessing about his physical health, finally resorting to wearing a corset and using questionable weight-loss products such as Reduce-O-Creme, which promises to "melt, melt, melt your fat away" upon application. 
After several disastrous attempts at dating women, Marcus resorts to seeing prostitutes. He begins to secretly record his encounters with the call girls, first with a small tape recorder and then with a hidden video camera. He quickly spends his entire life savings and contracts sexually transmitted diseases, all the while losing his grip on reality (his father "appears" on the television screen and berates Marcus). 
When a disagreeable prostitute discovers she is being surreptitiously videotaped, she pulls a handgun out of her purse, shoots Marcus and steals his video equipment. As Marcus lies bleeding to death he grabs the nearby bottle of Reduce-O-Creme and applies it to his belly in a final, futile gesture.
A:
What is the first name of the person who works at night?