A Federal Way man was accused of vehicular homicide and second-degree manslaughter on July 24 in the Grant County Superior Court.

In addition to those charges, Darrell W. Harris, 56, also faces DUI charges in an accident that killed 35-year-old Sheri Ann Warner, of Seattle.

The alleged crimes occurred on Aug. 24th, 2013, when Harris and Warner, his passenger, were riding on his motorcycle on eastbound Interstate 90 around 9:30 p.m. Both had been drinking, according to court documents.

For reasons unknown, Warner fell off the motorcycle and Harris was unable to hold on to her. Warner was then struck by oncoming traffic an unknown number of times. One vehicle that unknowingly struck Warner was identified and Harris said an 18-wheeler also struck the victim, according to court documents. Warner, of Seattle, was pronounced dead at the scene.

A witness said the motorcycle passed him going between 80 and 85 mph in a posted 70-mph zone, documents continue. The motorcycle was swerving in its lane and executed an “aggressive lane change.” The witness noticed debris in the road and saw the motorcycle turn around and head west in the eastbound lanes to collect what it dropped, the documents continue.

After she fell off, Warner slid on the ground for more than 100 feet, resting in the middle of the left lane. Warner then experienced severe trauma as officers believe at least two cars struck her, leaving her body unrecognizable, the documents state.

Harris was sitting in the median when Washington State Patrol troopers arrived and became aggressive, cursing and yelling until an officer tased him twice, the documents state.

Harris and Warner were heading to Soap Lake to meet Harris’s brother because their mother had died a week prior, according to court documents. Family and friends of Warner said she had a fear of motorcycles and never rode on them, the documents continue.

Harris agreed to sobriety tests and officers could see alcohol was still influencing him three hours after the incident, the documents add.