en.wikipedia.org/wiki/P._F._Sloan September 18, 1945 – November 15, 2015 "Sloan died on November 15, 2015 at his home in Los Angeles. He had pancreatic cancer for several months and his death was attributed to that disease."
from the Wikipedia article above: "Eugene Landy, the controversial psychologist, laid claim to being the real P.F. Sloan when he was asked by reporters why he considered himself able to direct Beach Boys lead singer Brian Wilson's musical career. Landy claimed to have written the songs attributed to "P.F. Sloan"."