John Lennon's son unveils monument

John Lennon's son Julian and first wife Cynthia unveiled a monument to the late singer Saturday, the 70th anniversary of his birth, and said the time for mourning the former Beatle was over.The presentation of a $350,000 18-foot structure, designed to promote peace, was one of several events being held around the world to celebrate one of pop music's most influential singers and songwriters who was murdered in New York in 1980 at the age of 40.

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