The Washington State Patrol’s Criminal Investigation Unit and the Major Accident Investigation Team are looking for any additional witnesses to the multiple car/multiple truck fatality collision on I-90 at I-405 that happened on July 20.

Anyone with information, who has not been in contact with investigators, is asked to call either Detective Greg Wilcoxson at 360-805-1195 or Detective Jeff Maijala at 425-401-7742.