The feud resulted from of an argument the two had over Moors Murderer Myra Hindley in 1989. McCartney believed that Hindley's religious conversion was insincere, and a disingenuous attempt at gaining leniency. Morrison, a devout Christian, felt the opposite way and stormed out of the conversation. The two haven't spoken since.
"My message to Van is that he should let bygones be bygones," McCartney said as he touched up the painting he first started in the late Sixties. "All I was trying to do during that discussion was make it clear that asking for forgiveness doesn't erase a terrible crime. Sometimes pleading forgiveness is a cop out."