Kittitas County, WA : Two people killed after westbound Interstate 90 near Snoqualmie on Friday February 5 2016

The Washington State Patrol has released the names of two people killed Friday: Richard Slightam, 49, and Carmen Lang, 50, both of Ronald, Kittitas County, who were driving west in a Volvo sedan when the truck swept across the road.
The driver of a semitruck has been arrested on suspicion of vehicular homicide after a crash that killed two people early Friday on westbound Interstate 90 near Snoqualmie Pass.
The Washington State Patrol said the driver of the car hauler lost control of the truck and veered across the roadway. The driver is suspected of being under the influence of drugs, the State Patrol said in a news release.
The collision involved two semitrucks and six passenger vehicles.

Source:
Driver arrested after I-90 crash that killed 2