I spotted this in a Facebook entry...

The post read: "The great Detroiter Henry Carr died. Northwestern High School athlete and Olympian. I remember him competing against Mackenzie High School. Had the Olympian Deli on Plymouth Road in Northwest Detroit .Wonderful memories."

From his Wikipedia entry: "Carr was a state champion sprinter for Northwestern High School in Detroit having posted a 100 yard time of 9.3 seconds."

He went on to win Gold Medals in the 1964 Tokyo Olympics in 200 meters and the 4x400 m relay.