SEATTLE (AP) — Authorities say alcohol, speed and a lack of instruments for boating at night all contributed to a fatal boat crash Saturday night near Vashon Island that killed one person and injured five others.

The King County Medical Examiner’s Office on Monday identified Justin Hagerty as the 28-year-old man who was killed. He died from drowning, and his death was ruled an accident.

Hagerty was the owner and driver of a 20-foot, 200-horsepower motorboat that slammed broadside into a 38-foot, unoccupied sailboat at the Dockton Park Marina.

They were heading home to Vashon Island from a bull-riding event in Tacoma when they crashed into the sailboat that was legally moored offshore.

Hagerty was thrown off the boat. Hagerty’s passengers, — two women and three men — were injured.