Herbert William Mullin was an American serial killer born on April 18, 1947 who operated in Santa Cruz, CA. 
Mullin was serving life in prison for 13 murders which he says he committed to prevent further natural disasters.  Mullin died of natural causes on August 18, 2022.
 
Small Boat Great Mountain paperback book owned by Mullin. He has hand signed the inside front and the inside back of the book.
Hand signed on the inside, Herbert William Mullin, and hand signed again, H.W. Mullin.