A man charged with the murderof two men at a marijuana grow operation has been found guilty. Christopher Wayne Gamble was found guilty in Mendocino County Superior Court of the shooting deaths and beheadings of Ulises Andrade Ayala and Anwar Ayala Rodriguez. . The sentence in each case was life in prison with a special enhancement due to the use of a firearm to commit the murders, adding 25 years to life to the sentences for each murder.