Businessman. He was a pioneering music talent promotor and impresario who is considered by many to be the “Father of the Modern Music Business”. The many musical singers and acts he promoted and stages shows for at his music venues include Janis Joplin, The Grateful Dead, Jefferson Airplane, Led Zepplin, Cream, Crosby, Stills, Nash & Young, John Fogerty, Joan Baez and Kris Kristofferson. Cause of death: Helicopter crash