John Lennon's killer Mark David chapman denied parole John Lennon's killer, Mark David Chapman, has been denied parole for the 14th time. 11 September 2025 John Lennon's killer has been denied parole for the 14th time. John Lennon's killer has been denied parole Mark David Chapman fatally shot the Beatles singer outside his Manhattan apartment building in December 1980 and was sentenced to 20 years to life behind bars the following August, and he recently made a fresh bid for release.