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Sheriff’s Deputy Ryan Zirkle had worked for the sheriff’s office for just over two years.   David Briggs

A 24-year-old Marin County Sheriff’s Office deputy died last Thursday after crashing his car into a tree off Highway 1 just north of Point Reyes Station. Ryan Zirkle, a Petaluma resident who grew up in Novato, had been responding to a 911 hang-up call placed nearby at around midnight. 

According to a . . .