The manhunt for the father accused of murdering his three young daughters has hit another dead end after a possible Fourth of July sighting fizzled out in a popular Idaho state park.

Authorities are still looking for 33-year-old Travis Decker, a former member of the U.S. military and wilderness survivalist wanted for allegedly killing his three daughters – Paityn, 9, Evelyn, 8, and Olivia, 5 – before vanishing into the Washington wilderness. 

Last weekend, a tipster called in a potential sighting of Decker in Idaho’s Sawtooth National Forest in what was believed to be a break in the case following over a month of searching, according to Fox 13.

Travis Decker was believed to be living out of his pickup truck at the time of the alleged murders. (Wenatchee Police Department)

“Multiple canines with different disciplines are being utilized, and have been being utilized, throughout the search,” a Chelan County Sheriff’s Office (CCSO) spokesperson said in a previous statement to Fox News Digital. “This includes human remains detection dogs.”

Last week, CCSO confirmed that traces of blood found on the tailgate of Decker’s truck matched the DNA of the wanted father, further ruling out the possibility of additional suspects in the brutal slayings. 

“With this evidence, along with the other evidentiary items found at the scene, we do not have any reason to believe there are any other suspects,” the department said in a statement.

Authorities have warned the community that Decker should be considered armed and dangerous, but is not an immediate threat to public safety. He is charged with three counts of aggravated first-degree murder and kidnapping. 

The U.S. Marshals Service is offering a $20,000 reward for any information leading to Decker’s arrest. 

Fox News Digital’s Sarah Rumpf-Whitten contributed to this report.