Police and emergency crews respond to the area of the Waukegan North Harbor, 199 East Madison Street in Waukegan, after the body of Seamus Gray, 21, (inset) was found in the water Wednesday. | Inset: Provided; Background Photo: Craig / Captured News

An autopsy showed the missing 21-year-old U.S. Navy sailor found in Lake Michigan near Waukegan died of drowning and there were no signs of foul play.

Waukegan Deputy Police Chief Scott Chastain said officers were on a traffic stop around 7:08 p.m. Wednesday near the Waukegan Harbor when ComEd workers flagged down the officers.

The workers reported they were doing routine work near the Harbor when they spotted a body in the water.

An officer went into the water to attempt a water rescue and was able to bring the body to shore, Chastain said.

The Waukegan Fire Department responded and retrieved the body further onto shore.

Chastain said the body and clothing matched the description of Seamus Gray, 21, who went missing on March 18 after leaving a downtown Waukegan bar.

Lake County Coroner Jennifer Banek said late Wednesday evening that the body was positively identified as Gray.

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The coroner’s office said they have been in contact with Gray’s family.

Seamus Gray, 21, who is an active-duty member of the U.S. Navy, was seen leaving Ibiza, 17 North Genesee Street in Waukegan, early in the morning on March 18, 2023, and walking away from the bar. | Provided Photos

Banek said an autopsy on Gray was performed Thursday morning. The preliminary autopsy results showed Gray died as a result of drowning.

“There is no evidence of significant injury which would have contributed to his death,” Banek said.

Surveillance footage from early morning on March 18 showed Gray traveling eastward from Ibiza Bar on Genesee Street in Waukegan.

He was later seen on video walking by himself along the edge of Lake Michigan at the Waukegan Harbor.

Gray was a U.S. Navy Fireman Recruit assigned to Surface Warfare Engineering School Command at Naval Station Great Lakes.

He did not report back to the base at his assigned time of 2 a.m. on March 18.

Waukegan police said last month that should Gray have gone into Lake Michigan, his body would not likely come up for a while due to the cold temperatures and cold water at the time.

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The incident remains under investigation by the Waukegan Police Department, the U.S. Naval Criminal Investigative Service and the Lake County Coroner’s Office.