Gary Francis Poste

A mugshot of Gary Francis Poste (left), of Groveland, taken when he was arrested for domestic violence on Feb. 22, 2016, and booked into Tuolumne County Jail, where he spent more than a year before being sent to a state-run nursing facility in Stockton after being diagnosed with dementia and found incompetent to stand trial. He died in state custody at 80 on Aug. 23, 2018. A group of independent investigators has now accused him of being the notorious Zodiac Killer (police sketch of possible likeness from the late 1960s on the right).