The wife of former Wasco County Sheriff Darrell Hill is in serious condition at Mid-Columbia Medical Center after being wounded by him in an accidental shooting on Saturday morning in The Dalles.  According to the Oregon State Police, 75-year-old Darlena Hill suffered a gunshot wound to her abdomen when her husband, 76-year-old Darrell Hill, was handling a firearm which he thought was unloaded and it discharged, striking Darlena Hill.  Darlena Hill underwent surgery at MCMC, and the OSP says she is in serious condition.  A September 2014 article in The Dalles Chronicle reported Darrell Hill had been diagnosed with rapid progressive dementia.  Law enforcement officials responded to the scene of the incident at 950 Pomona Street in The Dalles at around 8:52 a.m. Saturday.  The Wasco County Major Crimes Team is investigating the shooting, with the Oregon State Police leading the investigation and working in cooperation with the Wasco County District Attorney.   Darrell Hill was in law enforcement for nearly 50 years, serving as Chief of The Dalles Police Department and then Wasco County Sheriff from 1996 to 2004.  He has been married to Darlena Hill for nearly 57 years.