Motorist facing vehicular homicide after crashing into disabled semi truck 

Police are seeking witnesses to a crash between a disabled semi truck and a motorist that killed one in Washington on Monday night. 

The accident happened on June 27th at around 8:10 p.m. in Issaquah, Washington. 

According to KATU 2 ABC, a 2010 Ford Escape was driving along westbound State Route 18 near the Tiger Mountain summit when it crashed through a series of reflector triangles and smashed into a disabled semi truck stopped in the first lane of the highway. The four wheeler struck the left rear corner of the tractor trailer, killing the passenger at the scene. 

Police say that the motorist was showing signs of impairment at the scene. As a result, they were subsequently arrested for an investigation of vehicular homicide. The motorist was also taken to a nearby hospital for evaluation. The truck driver was not hurt in the incident. 

Washington State Patrol is asking anyone who witnessed the crash to come forward.