Vanity Fair magazine has been quietly working on the story of the man for more than a year and a half but the New York Post broke the story last week about the man, who bears a strong resemblance to the late president.

He retained his U.S. citizenship and married a Canadian woman and has lived in Vancouver, British Columbia, for the past six months. He told Canada's Globe and Mail newspaper his name is Jack Worthington and showed a passport in which his date of birth is listed as Nov. 22, 1961. That's two years to the day before Kennedy was assassinated in Dallas.

If Worthington is Kennedy's son, he would have been conceived soon after Kennedy's inauguration, the newspaper said.

Worthington said his mother was from Texas and had been introduced to Kennedy by U.S. Vice President Lyndon Johnson, the report said.