His death was ruled an accident, according to the Snohomish County Medical Examiner's Office.
Police believe Grimes was fishing when he somehow ended up in the water. His boat also was recovered.
The investigation continues.
More Local News Headlines
Everett City Council puts courthouse deal on hold over parking questions Monroe skatepark will undergo $240,000 worth of improvements GPS coming to most local police, fire vehicles Locals fondly recall author Ann Rule Man sought in Marysville shooting Voters to decide on Marysville fireworks ban Life in prison for killer of Seattle police officer who was from Marysville Volunteer brings troubled felines to inmates, who help tame them
Our new comment system is not supported in IE 7. Please upgrade your browser here.