Gabby Petito's disappearance spurred into action a vast network of online sleuths and social media users, all looking for clues to try and trace the missing 22-year-old's movements.
Petito, from New York, was reported missing on September 11, and her boyfriend Brian Laundrie - who had fled back to Florida on September 1 - was reported missing on September 14.
His whereabouts are unknown.
She was last seen on August 24 leaving a hotel in Utah, and spoke to her mother the following day, seemingly happy.
Gabby Petito was last seen on August 24 and was reported missing on September 11. Brian Laundrie, her boyfriend, arrived home in Florida alone on September 1, and disappeared, reported missing by his parents on September 14
Petito, 22, is seen with Laundrie in a post dated July 4, 2001 from Monument Rocks. His post is captioned: 'Downsizing our life to fit into this itty bitty van was the best decision we've ever made. With the limited space we wanted to take advantage of every inch, while also keeping everything minimalist. Definitely felt inspired by a lot of other #vanlifers on @youtube but we came up with a completely original layout. Barely spent anything on the conversion and couldn't be happier with the outcome. #vantour coming soon! Sacrificing space to wake up in nature everyday has been no sacrifice at all. Cross country road trip with @gabspetito'
Petito is pictured on July 26 at Mystic Hot Springs, which she visited with Laundrie
The FBI in Denver began appealing for help on September 16, tweeting: 'UPDATE: The #FBI is working with our partners in the Teton County Sheriff's Office, Jackson Police Department, the @NatlParkService and other state & local law enforcement agencies across the country in the investigation of Gabrielle 'Gabby' Petito's disappearance. #FindGabby.'
On September 18 they tweeted a map, with specific details of the search area.
Since then the social media sleuthing has taken off - on TikTok, the #gabbypetito hashtag has been viewed more than 212 million times.
Josh Taylor, spokesman for North Port police, in Laundrie's Florida hometown, said on Friday that they had received more than 1,000 tips.
In Victor, Idaho - a touristic town just across the hills from Jackson, Wyoming - a shopkeeper told her local newspaper, East Idaho News, that she had seen the couple on August 25 or 26.
'Brian and Gabby came to Rustic Row,' the shopkeeper said.
'They told me they were traveling from Florida. They had just been to Teton Park and they said they were interested in going to Yellowstone and I told them they could go to the west entrance.
'They seemed happy and when they left, she hollered back from the door that they were engaged and then I said congratulations.'
A shopkeeper in Victor, Idaho (pictured) said she saw the pair in the town on August 25 or 26
Jenn and Kyle Bethune believe they saw Petito's van on August 27, and noticed its plates
Petito made her last Instagram post
