A US Coast Guard officer was killed during a suspected random shooting in Washington state as police launched a search for the suspected killer.

Coast Guard Lieutenant Connor Overstreet was fatally shot just before 12:40 a.m. Sunday in a residential neighborhood of Bryn Mawr-Skyway, Wash., 10 miles south of Downtown Seattle.

First responders found the 29-year-old in the roadway and attempted life-saving procedures, but the active-duty service member later died, Fox 13 Seattle reported.

Overstreet’s death was ruled a homicide from a gunshot wound to the chest, the King County Medical Examiner announced Tuesday.

No arrests have been made and officials have not publicly identified a suspect in the shooting.

The county sheriff’s office created a tipline asking for residents to submit any surveillance footage facing the street between 12:30 a.m. and 1:15 a.m. Sunday.

Additional details about the shooting were not released because of the ongoing investigation.

Overstreet, a native of Reno, Nevada, was stationed at California’s Air Station Ventura at the time of his death.

His remains were flown back to the base Friday with full honors.

“The Coast Guard is deeply saddened to confirm the death of LT Connor Overstreet, an active-duty member at Coast Guard Air Station Ventura, following an incident in the Seattle area,” the US Coast Guard Pacific Area told KING 5. “We extend our deepest condolences to the member’s family, friends and shipmates during this tragic time.”

Overstreet’s wife, Madeleine, called for justice for her “soulmate” on behalf of his family

“Connor was my rock and I am so honored to be Connor’s wife forever and always. All Connor wanted to do was save lives by flying for the Coast Guard. His loss is a tragedy felt by countless people. He was truly the best of us,” she said in a statement to Fox13.

“We plead with you to help us find answers, justice and peace for Connor and all who loved him so deeply,” the grieving widow added.

Overstreet’s family announced a $11,000 reward to help solve the investigation into the killing.

“I plead with the public to come forward with any information that may help bring justice for Connor,” his father Brennan Overstreet told the outlet. “Nothing can bring our son back but we have increased the reward for information in hopes to bring us answers in this unimaginable tragedy.

“Our family is devastated by the senseless loss of Connor. He brought joy, love, and kindness to all who knew him and the world is a darker place without him in it,” he said