Washington State Patrol says 29-year-old Marco Espana of Walla Walla was driving north on Old Milton Highway when his Honda Accord drifted into the southbound lane. The car then crashed head-on into a Ford Explorer traveling south, causing the SUV to roll onto its top.
Espana was taken to St. Mary Medical Center, along with the three occupants of the Explorer, 47-year-old Juan Esparza, 45-year-old Luisa Contreras and 9-year-old Evelyn Esparza Contreras.
Charges for the crash are still pending. Troopers say they do not believe drugs or alcohol played a role in the crash.