"I remember someone telling me my mum wants to talk to me and sensing a very strange atmosphere in the house. I remember her telling me, 'Your dad's been shot and killed,' and the thing that felt most important to me was that I didn't want her to see me cry.... As soon as my mum couldn't see me, I think for days I cried." JOHN LENNON's son SEAN on the night his father was killed, in PHILIP NORMAN's new biography JOHN LENNON: THE LIFE.