Article continues below advertisementThe tragic murder of John Lennon in 1980 left an indelible mark on music history. Paul McCartney's reaction, however, has sparked debate among fans for decades. In the new documentary Man on the Run, Sean Ono Lennon sheds light on this moment, providing a unique perspective.Article continues below advertisementSource: MEGASean Lennon discussed Paul McCartney's response to John Lennon's death.Article continues below advertisementOn December 8, 1980, John was fatally shot outside his New York City apartment.