Knowing of threats to his life, Milk sat down in the back room of his Castro Street camera store just 10 days after he was elected in 1977 to tape-record his will. The museum exhibit is set up so that visitors can listen to that recording, in which Milk talks about what his intentions are in the event of his assassination, while looking at the suit.
Source: Los Angeles Times May 22, 2019 10:34 UTC