An off-duty Washington State Patrol (WSP) trooper involved in a fatal collision late Saturday evening was arrested for DUI vehicular homicide, according to law enforcement officials.

A WSP trooper accused of driving under the influence and fatally hitting a motorcyclist in Richland has been placed on administrative leave.

A Washington State patrol trooper was charged with vehicular homicide after she allegedly plowed into a 20-year-old motorcyclist while drunk behind the wheel. Sarah Lee Clasen, 35, was driving in her vehicle down State Route 240 in Richland — about 200 miles southeast of Seattle — on Saturday at around 7:40 p.