New documentary suggests innocence of John Lennon's killer.

A three-year investigation into the murder of John Lennon has raised questions about the official narrative of the shooting, including the possibility that detectives misunderstood how it happened. The investigation has unearthed a trove of documents, including gunman Mark Chapman's 'hit list', which featured Marlon Brando and former First Lady Jackie Kennedy Onassis. Witnesses suggest that the way the shooting was officially recorded may have been completely wrong, with the fatal shots fired into Lennon's chest rather than back. The investigation has also raised questions about whether Chapman may have been 'groomed' for the assassination through manipulation or even hypnosis by powerful backers with links to right-wing Southern Christians, the US military or the CIA.