He worshipped the singer - but despised the superstar. Obsessed with his idol, he was left with only one choice - the man had to die. Based on five years of exclusive interviews with Mark Chapman - the man who brutally gunned down John Lennon - LET ME TAKE YOU DOWN breaks through the myths, lies and rumours to uncover the true forces that drove Chapman to kill the world's most famous musician. With chilling lucidity, Chapman dissects - for the first time - his own doomed life. And Jack Jones, also gaining access to Chapman's wife friends, and psychiatrists, paints a hauntingly accurate portrait of the 'Nowhere Man' drawn to the Beatles, to The Catcher in the Rye, to charismatic Christianity, to devil worship - and to murder.