This undated photo provided by the Wenatchee Police Department shows Travis Caleb Decker who the police are asking the public for help in locating the Washington state father who is wanted for murder after his three young daughters were reported missing and then found dead. (Wenatchee Police Department via AP) The Associated Press

SEATTLE -- Authorities have closed a wide swath of popular campgrounds and backpacking areas along the Pacific Crest Trail in Washington as they search for a former Army soldier wanted in the deaths of his three young daughters .

Dozens of additional law enforcement officers from an array of agencies joined the investigation and search Friday for Travis Caleb Decker, 32, four days after the girls — 9-year-old Paityn Decker, 8-year-old Evelyn Decker and 5

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