An Oak Harbor man who drove drunk and killed another motorist on North Whidbey earlier this year was recently sentenced to prison.

Westyn Sillavan pleaded guilty in Island County Superior Court Dec. 5 to vehicular homicide. The judge agreed with the joint sentencing recommendation presented by the defense and prosecution as part of the plea bargain.

Sillavan was sentenced to seven years and 11 months in prison, which was the low end of the standard sentencing range.

Marc Davis, a 40-year-old Navy veteran and father of two, was killed in the March 30 collision on North Whidbey. He spent months in the hospital before succumbing to a brain injury on Aug. 27.

The Washington State Patrol reported that Sillavan was driving north on Highway 20 near Sleeper Road in a Ford Explorer at about 11 p.m. Sillivan’s vehicle crossed the centerline, colliding with an oncoming Cadillac ATS driven by Davis, according to a Washington State Patrol report.

Sillavan was walking around when the trooper arrived. He said he had fallen asleep after driving a friend home and stopping for food at McDonald’s, the trooper wrote.

The trooper noted an odor of intoxicants coming from Sillavan, who initially denied drinking alcohol but said he had smoked marijuana. When asked to do a voluntary Breathalyzer test, Sillavan admitted to consuming whiskey about an hour before the crash, the trooper’s report states. The test showed a blood-alcohol level of 0.115, which is over the legal limit of 0.08, according to the report.

Davis suffered a traumatic brain injury and was unconscious at the scene. He was immediately airlifted to Harborview Medical Center in Seattle for treatment.

Davis passed away at a Seattle hospital on Aug. 27 after spending months in a coma, according to his brother. He was 40 years old.

His brother, Mitchell Davis, said Marc will be remembered as a father, a veteran, a man with a heart of gold and a talented lyricist.