The FBI has closed several roads, trails, and campgrounds in Leavenworth, Washington, as part of an ongoing investigation into the alleged murders of three young sisters by their father, Travis Decker. This search is approaching the three-month mark since the tragic incident. The U.S. Forest Service announced that the Rock Island Campground, where the girls were found, will be closed to the public to facilitate the investigation.

Paityn Decker, 9; Evelyn Decker, 8; and Olivia Decker, 5, were discovered dead near the campground on June 2, shortly after they left home for a visit with their father on May 30. The FBI is conducting a thorough search of the area, which includes a quarter-mile radius around the crime scene. Over 100 FBI personnel are involved in the search, aiming to gather all possible evidence related to Decker's whereabouts.

Chelan County Sheriff Mike Morrison emphasized the commitment to finding Decker, stating, "We will not relent. We will not give up. The girls would not want us to give up." He noted that there has been no significant breakthrough in the case, and authorities currently have no evidence indicating whether Decker is alive or deceased. Morrison remarked, "If he’s alive, he must be pretty tired by now. He’s got to be perfect every single day; we just have to be perfect once."

The campground closure began on Sunday morning and is expected to last until at least Wednesday at 6 a.m. However, officials indicated that the closure might extend through the week if more time is needed for the investigation. Morrison stated, "We want to bring closure. We want to bring answers."

The search has been in preparation for several weeks, and authorities are working to ensure that they can provide sufficient information to other agencies, as the investigation could take years. Morrison assured the public, "If it’s not me wearing this uniform, it’s another Chelan County Sheriff. We will find him, in one fashion or another."

Access to the closed areas is restricted to federal, state, or local officers, members of organized rescue or firefighting forces, and individuals with a U.S. Forest Service permit. The closure follows the release of new details about the crime scene and DNA evidence that points to Decker as the sole suspect.

The U.S. Marshals Service is offering a reward of up to $20,000 for information leading to Decker's arrest. He is wanted on three counts of first-degree murder and three counts of kidnapping. Authorities have warned that Decker is considered armed and dangerous, urging anyone with information about his whereabouts to call 911 immediately and not to approach him.