HILLSBORO, Ore. (AP) — A man has become the third person to die while in jail custody in the past two months west of Portland, Oregon, prompting the Washington County sheriff to call for an independent investigation. The Oregonian/OregonLive reports the Washington County Sheriff’s Office said the death Wednesday in Hillsboro’s Washington County Jail involved a 51-year-old man who arrived at 7 a.m. and was dead less than 15 hours later. In a statement Thursday, Sheriff Pat Garrett called the three deaths “unprecedented” and said he was arranging to have an outside agency conduct an independent investigation. Garrett did not specify the agency.