A manhunt last Friday evening stoked fears in the San Geronimo Valley after an 82-year-old Forest Knolls resident was found on French Ranch Fire Road near Lagunitas School, suffering from a head wound. Initial statements from Marin County deputies that Richard Helzberg had succumbed to a gunshot wound were not supported by a preliminary autopsy performed on Monday that found he had died from a blunt-force strike. 

Mr. Helzberg, a family law lawyer, was…