Jeffrey James Hammer, 23, was last seen the evening of May 9, 2018, in Brewster, Washington. He was reported heard from at about 9:00 p.m. in the area of the Columbia Cove Park Boat Launch on South 7th Street and is believed to have been on foot. His vehicle was later found at Columbia Cove Park, which led investigators to characterize his disappearance as sudden and unplanned.

Jeffrey is described as a white male, brown hair, blue eyes, about 5 feet 9 inches to 5 feet 10 inches tall and 150 to 165 pounds. He was wearing a dark hooded sweatshirt, blue jeans and gray shoes with orange laces. A tattoo of his last name HAMMER is on his right forearm. The Brewster Police Department, led by Lieutenant Kelly Hook, opened the investigation after the family reported him missing on May 10, 2018. Despite searches and public appeals, no substantial leads have been reported and the case has grown cold.

Anyone who saw Jeffrey in Brewster on May 9, 2018, or who has information about his vehicle or movements that night is asked to contact the Brewster Police Department.