WASHINGTON, USA — Travis Decker, the man believed to have killed his three daughters near Leavenworth, Washington, earlier this year, has been declared dead by the U.S. Marshals Service.

The declaration came as part of a court filing Wednesday in the Eastern District of Washington to dismiss Decker’s criminal case and arrest warrant.

“The United States Marshals Service has advised the Defendant TRAVIS CALEB DECKER is deceased,” assistant U.S. Attorney Caitlin Baunsgard wrote in the filing.

A Chelan County Sheriff’s Office spokesperson told KING 5 it’s still waiting for DNA confirmation on remains recently found and presumed to be Decker. They were found in a remote wooded area south of Leavenworth during a search involving multiple agencies last week.

“While positive identification has not yet been confirmed, preliminary findings suggest the remains belong to Travis Decker,” the Chelan County Sheriff’s Office said in a statement on Sept. 18.

The manhunt for Travis Decker began after he failed to return to his three daughters’ home following a scheduled visit per a parenting plan on Friday, May 30. That night, the Wenatchee Police Department responded to a Civil Complaint from the girls’ mother.

After additional investigation, police activated an Endangered Missing Person Alert on Saturday, May 31, for the Deckers to notify the public to be on the lookout.

On Monday, June 2, information led the Chelan County Sheriff’s Office to search the Icicle Road area near Leavenworth for the Deckers. Deputies found Decker’s truck near the Rock Island Campground, which is about 17 miles west of Leavenworth. The vehicle was unoccupied.

Law enforcement searched the surrounding area and found the three Decker children dead. The Chelan County medical examiner determined the official cause of death for the girls to be suffocation.