The Hennepin County medical examiner has identified a man who was killed Sunday by a runaway boat and trailer in Minnetrista.

Roger Edward Erickson, 58, of Austin, Minn., was crushed when he tried to stop a boat and trailer that rolled down a driveway after it was unhooked from a vehicle. Erickson was pinned beneath the trailer when police arrived at 3535 County Road 44.