Juan Vallejo Corona aka "The Machete Murderer" was California’s most prolific serial killer and held the record for the most murder convictions until the arrest and trial of Chicago serial killer John Wayne Gacy. Corona was convicted of killing 25 migrant workers although the number is believed to be much higher. He buried the victims remains in orchards around Yuba City, CA. Corona still holds the record for the most murder convictions in the state of California. Corona died of natural causes on March 4, 2019.

8 1/4" x 11" press photograph dated May 27, 1971, Yuba City, CA. MASS SLAYING VICTIMS - The covered bodies of three mass slaying victims lie in a Yuba City mortuary after being recovered from their unwanted graves. A total of 14 bodies have now been recovered. Juan Corona, a farm labor recruiter, is being held for questioning in connection with the death of ten men.