Research by Travis Decker: The authorities reveal disturbing details on the crime scene, a new DNA analysis

This story contains information that can be disturbing for some readers.

While the search for Travis Decker – the father accused of having killed his three daughters – almost reached the three -month mark, the officials reveal new disturbing details on the crime scene and the evidence they say indicates that he is the only suspect.

Paitact Decker, 9 years old; Evelyn Decker, 8; And Olivia Decker, 5, was found dead near the rock field of Rock Island in the county of Chelan, Washington, on June 2, after leaving the house for a visit scheduled with their father on May 30, according to the police.

The court documents obtained by ABC News in June revealed that there were plastic bags above each girl’s head and that their wrists were attached to the zipper, but a new press release from officials on Monday provided new details on how the children were found.

“Two of the victims each had two bags separated above their heads and the third victim had three separate bags above their head,” said officials.

In addition to plastic bags, “several cable links were located on the ground in the immediate bodies area,” said officials.

The authorities collected plastic bags and cable ties and submitted the articles to the Washington State Crime Lab for DNA analysis, officials said.

On August 6, Crime Lab reported that the “DNA profiles matching Travis Decker had been found on plastic bags” and cable ties, confirming to those responsible that he is the only suspect.

“The completion of this DNA analysis provides additional evidence that indicates that Travis Decker is the only suspect involved in the commercies of these homicides,” said officials.

DNA corresponding to the three girls was also located on the plastic bags, officials said. On June 9, an autopsy determined that the cause of the death of the girls was sufficient, according to the Sheriff’s office.

In July, officials also said that the bloody handshakes located on the tailgate of the Decker vehicle – which was discovered near the girls – also corresponded to the father’s DNA profile.

The new announcements of officials occurs a month after declaring that they reduce research efforts to find Decker due to a “reduced imprint” and a “decrease in tracks and advice”.

The sheriff’s office confirmed on Monday that the place where Decker was unknown and that they “have no evidence suggesting that Travis Decker is alive or deceased”.

The Chelan County Sheriff’s Office said that it continued to work with local, state and federal partners to apply the law to “coordinate continuous research efforts”.

In July, the Sheriff of the County of Chelan, Mike Morrison, told ABC News that the managers remain “hopes” that they will find decker, but know that this hunt could be a “long term”.

“We could fight for five years, 10 years, 20 years. I hope we are looking at a few weeks and it ends, but it could be long and we are committed to staying with it,” Morrison told ABC News.

The US Marshal Service still offers a reward of up to $ 20,000 for information leading directly to the arrest of Decker.

The officials said that whoever sees Decker or knows where he is should call 911 immediately and not contact or approach him. He is currently wanted for three heads of first degree murder and three kidnapping chiefs, officials said.

Decker is considered armed and dangerous, officials said.

For a chronology of what we know about the murder of the three sisters, click here.