Gabby Petito

Gabby Petito’s remains were found in the Bridger-Teton National Forest in September. Now, authorities are searching for her boyfriend who arrived home without her from their cross-country trip.

Gabby Petito, 22, vanished after going on a cross-country trip with her boyfriend in a converted camper van. Here is a timeline of her disappearance, death and the developments in the case.

The body that was found Wednesday belonged to Brian Laundrie, the only person of interest in the Gabby Petito case, officials say.

A body was found Wednesday during the ongoing search for Brian Laundrie, the only person of interest in the Gabby Petito case. Investigators have yet to identify the remains, but items belonging to Brian were found nearby.

The FBI confirmed to reporters in Florida Wednesday that investigators found what appear to be human remains, "along with personal items, such as a backpack and notebook belonging to Brian Laundrie," just hours after Laundrie's parents searched the Myakkahatchee Creek Environmental Park.

“I said, ‘You might want to change your appearance for a while or this will continue to happen where you go,’” Graham County Sheriff Jerry Crisp told Severin Beckwith, the Brian Laundrie doppelgänger.

Pasco County K9 Diesel, trained to detect human remains, has joined in on the search for Brian Laundrie at the Carlton Reserve.

Brian Laundrie's family, through the means of their attorney, released a new statement Tuesday immediately after the Wyoming coroner released his final autopsy, which determined Gabby Petito was strangled to death.

Gabby Petito died of strangulation about three to four weeks before her body was found, according to the Wyoming coroner’s final autopsy report.

Former FBI agent Terry Turchie says fugitives like Brian Laundrie "tend to try to figure out" how they can reach their "comfort zone" while on the run and are often located in those places.

Gabby Petito told a police officer that her fiancé, Brian Laundrie, didn't believe in her dream to create a website and blog, but she was apparently able to edit and publish an 8-minute video when Laundrie left her for nearly a week in Utah while he flew home to Florida.

The timeline of Brian Laundrie's whereabouts since he returned to Florida in his fiancée's van on September 1 continues to evolve as the family's lawyer confirms new details about the day he disappeared from his parents' North Port home.

A lawyer for Brian Laundrie's family has released their explanation as to why he went home to Florida without his fiancée, Gabby Petito.

A man claims he spoke to someone he believes to be Brian Laundrie near the Appalacian Trail

Newly-released body camera video reveals more about the complicated and tumultuous relationship between Gabby Petito and Brian Laundrie and a fight they had weeks before her death.

Two agents pulled up to the North Port home where Brian Laundrie’s parents live. They went inside with a large paper bag and took a closer look inside the family’s parked camper amid the search for the missing suspect.