National Guard deployed in manhunt for survivalist accused of killing his three young daughters

The hunt has intensified for a Washington authorities survivalist who has been connected the tally from authorities for much than a week aft helium allegedly killed his 3 young daughters.

Washington Gov. Bob Ferguson activated the state's National Guard precocious Friday to assistance successful the manhunt for Travis Caleb Decker, 32, who disappeared aft helium failed to instrumentality his children pursuing a scheduled visitation.

Separately, constabulary said that much than 100 officers are present searching for Decker, with much than 500 tips coming successful from the nationalist arsenic constabulary said their absorption connected the fugitive has narrowed. 

"At the petition of the Chelan County Sheriff’s Office, we volition beryllium providing chopper proscription for instrumentality enforcement arsenic they hunt successful distant areas," Ferguson wrote connected X.

Authorities released this representation of wanted execution fishy Travis Decker Thursday, showing tattoos connected some arms and connected his near side. He is accused of sidesplitting his 3 young daughters and leaving their bodies astatine the bottommost of a elevation astatine a Washington authorities campsite. (Courtesy of Chelan County Sheriff's Office)

AUTHORITIES RELEASE NEW DOORBELL CAMERA VIDEO OF SUSPECT WHO ALLEGEDLY KIDNAPPED, MURDERED THREE DAUGHTERS

"As a parent, my bosom goes retired to Paityn, Evelyn and Olivia’s mom, Whitney, and each those who emotion them. The brutal execution of these young children has shocked our state. I’m committed to supporting instrumentality enforcement arsenic they question justness for Paityn, Evelyn and Olivia."

The girls were discovered connected Monday with integrative bags implicit their heads and bound wrists astatine a campground successful Chelan County, astir 75 to 100 yards from Decker’s abandoned truck. They are believed to person died from asphyxiation.

Authorities said that caller surveillance video, photos and tips from the nationalist are continuously surfacing, which assistance successful decision-making to find Decker.

Decker spent clip successful the subject and is an avid outdoorsman, according to authorities. He did not person ineligible custody of the girls astatine the time.

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From left, a composite of undated household photos showing nine-year-old Paityn,  eight-year-old Evelyn and five-year-old Olivia Decker. All 3 were reported missing Monday aft their begetter failed to instrumentality them to their mother's custody. Now helium is wanted successful transportation with their murders. (Courtesy of the Wenatchee Police Department)

"Despite the galore challenges faced and the analyzable ongoing execution investigation, morale and effort remains highly precocious wrong unit astatine the Command Post," the Chelan County Sheriff's Office said successful a property release.

"Out of an abundance of caution, we person been fixed announcement to, and are moving successful conjunction with our surrounding counties successful the lawsuit Mr. Decker moves done the wood into their jurisdiction. Additionally, the much agencies we tin get involved, and the much the nationalist remains vigilant, the amended accidental for occurrence successful the seizure of Mr. Decker."

Chelan County Sheriff Mike Morrison released a caller photograph connected Thursday showing Decker's tattoos and said that hunt warrants had generated leads. He urged homeowners and radical with upland cabins to fastener their doors – including to sheds and outbuildings, permission their blinds unfastened and crook connected outdoor lighting.

WATCH: Sheriff optimistic successful hunt for antheral accused of sidesplitting 3 daughters: We're coming for you

The children were ages 5, 8 and 9. Decker's ex-wife, Whitney Decker, 35, told constabulary Monday that helium had failed to bring the girls backmost to her aft a Friday sojourn nether the presumption of their court-ordered parenting plan, according to tribunal documents. 

Morrison said authorities had not identified a motive. "Clearly, it's not the determination of a dependable mind," helium said.

Travis Decker was constricted to visiting the girls each different play – and not overnight – according to a court-ordered parenting program that helium did not sign. When helium did not bring the girls backmost by an 8 p.m. curfew Friday, his ex tried calling him – but her attempts went consecutive to voicemail, according to a Chelan County constabulary affidavit.

Police accidental recently obtained accusation revealed that Decker is "well versed successful wilderness endurance and susceptible of spending days oregon adjacent weeks successful the wilderness connected his ain and with precise small equipment." (Chelan County Sheriff’s Office )

WASHINGTON STATE FATHER WANTED FOR MURDER AFTER 3 DAUGHTERS FOUND DEAD

She told investigators that helium had ne'er missed the deadline to instrumentality their children before, but warned that helium has intelligence wellness issues, including borderline property disorder.

He is stateless and splits his clip betwixt motels and campgrounds, according to the affidavit.

WATCH: New footage released by authorities shows execution fishy Travis Decker

Decker drives a 2017 achromatic GMC Sierra with the Washington licence plate D20165C, according to authorities. License sheet scanners picked up the conveyance heading northbound implicit the Wenatchee Bridge connected Friday astatine astir 5:40 p.m. He did not amusement up for enactment Monday, according to the affidavit.

A Chelan County sheriff's lawman recovered the motortruck astir 4 p.m. connected Monday astatine the Rock Island Campground successful Leavenworth, Washington. They recovered all three girls' bodies between 75 and 100 yards away, down an embankment, according to tribunal documents.

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Each 1 had a integrative container implicit her head, and "their wrists were besides zip-tied oregon showed signs of being zip-tied," according to the affidavit. Deputies recovered 2 bloody handprints connected the pickup's tailgate. 

Decker's whereabouts stay unknown, and helium is charged with 3 counts each of aggravated first-degree execution and kidnapping. 

He is described arsenic lasting astir 5 feet, 8 inches gangly and weighing 190 pounds with achromatic hairsbreadth and brownish eyes. He has tattoos connected some arms and was precocious photographed with a goatee and mustache. 

Travis Decker was believed to beryllium surviving retired of his pickup truck.  (Wenatchee Police Department)

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It is chartless whether helium is armed, but authorities accidental helium should beryllium considered dangerous.

The Chelan County Sheriff's Office is advising anyone who sees Decker to debar approaching him and telephone 911 immediately. He faces a maximum of beingness successful situation without the anticipation of parole.

Authorities are offering a reward of up to $20,000 for accusation starring to his arrest.

Fox News' Christina Shaw contributed to this report.