This story starts when Neil Richardson retired and moved to Braintree, a small town in Essex, northeast of London. Richardson didn't know his new neighbors, but strangely, they knew him.
"[As] I walked through the streets," he tells NPR's Rachel Martin, "I was really surprised at how many people waved to me and said, 'Hello, John!' 'Hello, John!' "
One person in a cafe even said to him, "You're John Jemison, aren't you?"