Nearly a month since the body of 22-year-old "van life" blogger Gabby Petito was found, a Wyoming coroner has ruled the victim was strangled to death during a cross-country trip in the West with her fiancé Brian Laundrie, the FBI's prime person of interest in her homicide case.

According to coroner Brent Blue, Petito's body had been "outside in the wilderness for three to four weeks" when authorities stumbled upon her remains at a remote Wyoming campground on Sept. 19, more than a week after her family in Suffolk County reported her missing on Sept. 11.

Blue also noted in a news conference on Tuesday that her corpse was found with signs of strangulation in a campsite she had visited with the 23-year-old wanted man, Laundrie. 

It comes weeks after the Teton County coroner initially ruled her death a homicide in an initial post-mortem. 

"Unfortunately, this is only one of many deaths around the country of people who are involved in domestic violence and it's unfortunate that these other deaths do not get as much coverage as this one," Blue said.

However, the coroner stopped short at confirming if an item was used to kill the woman. While Blue refused to disclose details of Gabby's toxicology report, he clarified that Petito was not pregnant at the time of her death, the BBC noted.

Brian has been missing since mid-September following his solo return to his family's North Port, Florida home, where Petito had been living for some two years before they went off for a nomadic adventure in June.

In a recent interview, TV personality Dog the Bounty Hunter, who had joined the search for the fugitive before announcing he had to handle some other business, speculated that Laundrie phoned his parents in Florida for help after he allegedly killed the Long Island native.

He went further to suggest that the man might have been encouraged by his parents, Chris and Roberta, to rush back to their home in North Port right after killing Gabby, the New York Post noted.

“Of course he murdered her. I think he called the mom and dad right from the scene and said, ‘OMG!’” Chapman said while offering no evidence. He initially said that Brian could be a serial killer after discovering several disturbing books the fugitive has reportedly read.

The Laundries would refuse to comment any further on Chapman's allegations, according to their attorney, Steven Bertolino. He added that Petito's demise was a "tragedy" and clarified Brian is being sought by authorities over his unauthorized use of Gabby's debit card, according to the Insider

Gabby Petito Two days later on Sept. 19, FBI officials discovered the remains of Laundrie’s fiancée, Petito, at the Spread Creek dispersed camping area north of Jackson Hole in Wyoming. The horrifying discovery saw Laundrie named as a person of interest in Gabby's disappearance. Gabby Petito/Facebook