For most of his adult life, Nicholson, 87, has been an NBA fixture, part of the fabric at The Forum and Staples Center, which is now Crypto.com Arena. A columnist for The Los Angeles Times once called Nicholson “the best sixth man the NBA has ever seen, the oddest weapon in a very odd league.” During the Lakers’ championship clashes with the Boston Celtics, Nicholson was a main character, as significant as Magic and Kareem, especially the night he stood in Boston Garden and showed Celtics fans his backside. Allegedly. “He was not a normal person — he was Jack Nicholson,” former Lakers forward Jamaal Wilkes said. “We were all aware of that. We didn’t treat him like any other fan. We treated him with due respect and we appreciated the fact that he was so into us.”