How the search for Brian Laundrie, boyfriend of Gabby Petito, unfolded

Brian Laundrie is a person of interest in the death of his girlfriend.

A massive search for Brian Laundrie, the boyfriend of slain 22-year-old travel blogger Gabby Petito, took a dramatic twist Thursday with the announcement that human remains found in a Florida nature preserve are those of the wanted fugitive, according to the FBI.

The remains were recovered Wednesday, nearly five weeks after Petito's body was recovered in the Bridger-Teton National Forest in Wyoming. The Teton County Coroner ruled her death a homicide by strangulation.

The search for the 23-year-old Laundrie was centered around North Port, Florida, where investigators said he returned to his home on Sept. 1 without Petito but driving her 2012 Ford Transit.

Laundrie had been named by police as a "person of interest" in Petito's disappearance and a federal warrant had been issued for him alleging unauthorized use of Petito's credit card.

He refused to speak to the police and vanished on Sept. 13. His parents told investigators they believed he was headed to the Carlton Reserve in North Port.

The case grabbed national attention as Laundrie and Petito had been traveling across the country since June, documenting the trip on social media. Petito's parents reported her missing on Sept. 11 after not hearing from her for two weeks.

Here is how the weekslong search for Laundrie unfolded:


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Remains found at park, not clear if human

A law enforcement source told ABC News remains were found at a Florida environmental park. The source said investigators are working to determine whether the remains are human and whether the remains and other discovered articles are linked to Laundrie.


-ABC News' Jack Date


FBI confirms 'items of interest' found

The FBI said "items of interest" in connection to the search for Laundrie were found at the Carlton Reserve Wednesday morning and an evidence response team is processing the scene.


Cadaver dog team called to scene

A human remains detection team was requested by North Port Police to go to Myakkahatchee Creek Environmental Park to assist in the search for Laundrie, the Pasco County Sheriff's Office told ABC News

The team consists of one dog, a handler and two spotters.


-ABC News' Aaron Katersky


Articles belonging to Laundrie found in Florida nature park: Attorney

Articles belonging to Brian Laundrie were found Wednesday by his parents, said Stephen Bertolino, an attorney for Laundrie's family.

Bertolino said the articles were found while his parents searched off a trail that Laundrie frequented in the Myakkahatchee Creek Environmental Park in North Port, Florida, a nature park that's been the center of the search for Laundrie.

Law enforcement is now searching the area, Bertolino said.

The medical examiner’s office in Sarasota has been called to the preserve, a spokesperson for the office told ABC News.


Authorities investigating report of man seen in Panhandle matching Laundrie's description

The Okaloosa County, Florida, Sheriff's Office said on Tuesday that it is investigating a report that a man matching the description of Brian Laundrie was captured on a trail camera walking on a property in the Florida Panhandle area.

The individual was purportedly spotted Sept. 20 on an automatic wildlife camera in Baker, which is more than 500 northwest of where authorities have focused their search Laundrie.

"The OCSO did its due diligence in response to this report and is wrapping up an extensive search that took place in this area to include nearby farmlands. No one -- and nothing -- of note was located. The individual referenced in the post below has no known ties to our area," Okaloosa County Sheriff's Office wrote in a Facebook post on Tuesday afternoon, featuring a blurry image from the trail camera of a man walking with a backpack.

The image was initially posted on Facebook by local resident Sam Bass, who wrote, "I’m not saying this is the guy but whoever was on my trail camera this morning in Baker, Fl strongly fits the description of Brian Laundrie." Bass wrote that authorities have been contacted, and advised northwest Florida residents to be on the lookout.