 He has been a member of numerous hard rock bands including Schoolboys, Keel, King Kobra, Lizzy Borden, Geronimo!, Liquid Black, Big Cock, Icon, Tunnel, Steelshine and Kelly Keeling & Friends.He is the older brother of Dan Henzerling, also a musician and has two sisters (both younger).David was born in Cincinnati, Ohio and moved to Phoenix, Arizona with his family in December 1969.