(Portland, OR) -- Police are releasing the identity of a motorcyclist killed in a crash in Southeast Portland. The Portland Police Bureau says 55-year-old David Dahlen crashed into a van near Southeast 80th Avenue and Powell Boulevard around 2 p.m. last week Tuesday. Dahlen was taken to a hospital, where he died from his injuries. Police are asking anyone who witnessed the crash to come forward. Dahlen's death marks Portland's ninth traffic-related fatality so far this year.