To most of us who were teenagers in the 1970s, Elvis Presley’s death in 1977 passed without a murmur: news from a far-off country, someone for the older generation to mourn. It was John Lennon’s murder in December 1980 that provided the JFK moment, in this case the arrival of my father – who blamed The Beatles, along with jeans and fish fingers, for the decline of Western civilisation – in the bedroom doorway to recite that morning’s news headlines.The Radio 4 commissioning editors had quite properly decided that Lennon’s 75th birthday, which would have fallen on 9 October, needed maximal commemoration. And so to Stephen Kennedy’s dramatic monologue, John Lennon’s Last Day (8 October), over on Radio 2 could be added an Archive on 4 special (