What did Lennon ever do to him? He even signed his album cover that day. Chapman should have put a bullet between his own two ears first.
Agreed. Loved him; hated him; liked his music, hated his music; hated his politics; or saw him as someone who was evolving and eschewing some of the more radical of the radicals of his time (e.g. the lyrics to Revolution); hated Yoko - his musically impaired and kooky wife who allegedly broke up the Beatles, or saw it for being a great love story as told in his last album Double Fantasy; whatever you thought of John Lennon, he didnt deserve to be gunned down on the street by some crazy delusional person who was posing as a fan, who Lennon gladly signed an album cover and gave an autograph to as he did with his many fans.
Chapman may think he was just being an idiot that day when he murdered Lennon in cold blood, but then there is that Karma thing ..