To Kill a Mockingbird:

Born in 1926, Harper Lee grew up in the Southern town of Monroeville, Alabama, where she became close friends with soon-to-be famous writer Truman Capote. She attended Huntingdon College in Montgomery (1944–45), and then studied law at the University of Alabama (1945–49). While attending college, she wrote for campus literary magazines: Huntress at Huntingdon and the humor magazine Rammer Jammer at the University of Alabama. At both colleges, she wrote short stories and other works about racial injustice, a rarely mentioned topic on such campuses at the time. In 1950, Lee moved to New York City, where she worked as a reservation clerk for British Overseas Airways Corporation; there, she began writing a collection of essays and short stories about people in Monroeville. Hoping to be published, Lee presented her writing in 1957 to a literary agent recommended by Capote. An editor at J. B. Lippincott , who bought the manuscript, advised her to quit the airline and concentrate on writing. Donations from friends allowed her to write uninterrupted for a year.

Please answer a question about this article. If the question is unanswerable, say "unanswerable". Who was the famous writer Lee became close friends with?
Truman Capote