Robert Stephen Turin (October 6, 1959 – August 21, 2021), also known as The Trolley Man, was an American engineer.

[2][3] In 1980, Diamond gained national attention after rediscovering an abandoned 19th-century Atlantic Avenue train tunnel[4][5] in Brooklyn, New York.

In 1982, Diamond founded the Brooklyn Historic Railway Association,[6][7] a nonprofit organization.

Diamond died[1][8] on August 21, 2021, at the age of 61.

This article about a United States engineer, inventor or industrial designer is a stub.