It's thirty years since John Lennon was brutally gunned down in New York. Tom Brook was the first British reporter to broadcast live from the scene at the Dakota. He looks back on the events of that night and speaks to people about the Lennon legacy. Singer/songwriter James Taylor discloses revelations about meeting Lennon's assassin just days before the attack, and then hearing the gunshots that killed his friend. Irish singer, Bono talks emotionally about the impact Lennon had on his own music. And Lennon's son Sean, who is rarely interviewed about his father, speaks candidly about his legacy.