Task: Question Answering
Input (English): Passage: Letty Strong was raised in a good family, but became pregnant and ran away from home. She was taken in by elderly Fuzzy, and gave birth to Mickey in the back room of Fuzzy's bookstore at the age of fifteen. Embittered, she taught Mickey to be street smart so he will never be taken advantage of like her. Fuzzy strongly disapproves of how she is raising her son. Now seven years old, Mickey skips school and does as he pleases. Meanwhile, Letty earns a living by entertaining buyers so they will give business to her friend Steve Karns.
A milk truck driven by Malcolm "Mal" Trevor hits Mickey as he is rollerskating in the street. When Letty's lawyer, Adolphe, learns that Mal is the wealthy president of Amalgamated Dairies (out checking every aspect of his large business), he talks Letty into seizing the opportunity to make some money. They get Mickey to lie about the extent of his injuries. However, during the trial, Mal's attorney produces films showing Mickey fully recovered. The irate judge has Mickey taken from Letty and put in an institution for boys.
Mal and his wife Alyce have no children. Mal offers to adopt Mickey, with Letty's approval, so she can see her son more frequently. Mickey thrives on Mal's country estate and the loving parenting he receives.
Letty is not satisfied with this arrangement; she wants her son back. Adolph suggests she seduce Mal and blackmail him into giving her Mickey (as well as money) with a recording of their conversation. The plan works; Mal admits he has fallen in love with her, and they spend the night together. The next morning, however, Mal informs a surprised Letty that he has told his wife. Alyce is willing to sacrifice herself for Mal's happiness. Letty comes to realize her genuine feelings for Mal, and breaks up with him, pretending to have only been toying with him. She then goes back to Fuzzy and asks for her old job back at the bookstore. 
Question: What is the last name of the person who owns a country estate?
Output (English): Trevor.