Gabby Petito's cause death was strangulation, a Wyoming coroner said Tuesday at a press conference.

Teton County Coroner Dr. Brent Blue said Petito's body had been in the wilderness for 3-4 weeks before it had been discovered, which means Petito died in mid or late August.

Petito's body was found on Sept. 19 in Grand Teton National Park. Blue later determined that Petito's death was a homicide. 

Blue cited Wyoming state statute for not releasing any further information about the autopsy other than cause and manner of death.

Petito, 22, was reported missing on Sept 11. The YouTuber had been on a cross-country road trip in a van with her fiance Brian Laundrie and was documenting moments of the trip on social media.

Shortly after Petito was reported missing, Laundrie went missing and remains a wanted person on fraud charges. Laundrie has been the subject of an intense manhunt for several weeks.

Blue confirmed that law enforcement took DNA samples from the body to further investigate.