The Washington State Patrol is investigating a one car, one semi-truck, fatal collision from Monday, August 26 at 4:36 a.m. The collision occurred southbound I-405, North of I-90 (mile post 12) in King County.

Detectives and Troopers are seeking witnesses that may have seen the collision, including any event leading up to or following the crash. Anyone with information has been asked to call Detective Sergeant Stacy Moate at (425) 401-7741 or Detective Greg Wilcoxson at (425) 401-7746.