WATERBORO — One of the three Coast Guard crew members killed Wednesday in a helicopter crash off the coast of Washington state grew up in Maine.

Lt. Sean D. Krueger of Seymour, Conn., the commander, attended Massabesic High School in Waterboro. He was 33, and leaves behind a wife and three children.

Also killed were 40-year-old Adam C. Hoke of Great Falls, Mont.; and 33-year-old Brett M. Banks of Rock Spring, N.Y. A fourth crew member is recovering from a broken arm and leg at a hospital in Seattle.

Coast Guard investigators are determining why the MH-60 Jayhawk went down about 100 miles west of Seattle on the Olympic Peninsula.