Jacqueline Kennedy cradles her husband, President John F Kennedy, seconds after he was fatally shot in 1963. Kevin Farrell was a 16-year-old attending a youth meeting at the Our Lady of Good Counsel church in Drimnagh in his native Dublin when he heard of the assassination. Photograph: AP

Kevin Farrell was a 16-year-old attending a youth meeting at the Our Lady of Good Counsel church in Drimnagh in his native Dublin when he heard US pre(...)