Umatilla County, Ore. (Dec. 3, 2025)- On Monday, December 1, 2025, at 5:53 a.m., Oregon State Police responded to a vehicle versus pedestrian crash on Highway 395, near milepost 2, in Umatilla County.  The preliminary investigation indicated a pedestrian, Breann Hailey Mayberry (31) of Umatilla, was located deceased on the northbound shoulder of the highway. Evidence at the scene led investigators to believe a white commercial motor vehicle was involved in the collision and had fled the scene.  While still at the scene, investigators observed a white Freightliner commercial motor vehicle and trailer being towed down the highway. The damage to the Freightliner was consistent with the scene evidence and the vehicle was seized. The operator, Timothy Alvin Brown (66) of Yakima (WA), was later located and arrested for Fail to Perform Duties of a Driver.  The pedestrian (Mayberry) was declared deceased at the scene.  The operator of the Freightliner (Brown) was reportedly uninjured.  The highway was impacted for approximately five hours during the on-scene investigation. The investigation is active and no additional information is available for release. OSP was assisted by the Hermiston Police Department, Umatilla County Fire District 1, and ODOT.