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.


Florida search ends for the night, police say they don't know cost of effort

The search for Brian Laundrie in the Carlton Reserve, near North Port, Florida, ended Friday night due to darkness. After seven days of searching, police have yet to turn up any evidence of the missing 23-year-old who now has a warrant out for his arrest in Wyoming.

The North Port Police Department said it has been asked about the cost of the search as it continues into the second weekend.

"The question about costs have come up a lot today. We do not have that tallied up," the department said in a statement. "We are not paying other agencies, it's mutual aid. From our personnel standpoint, I would say we are working this case instead of other things. That has an impact of course. There will be some overtime mixed in there. Cost of fuel and vehicle maintenance too."

Late Friday, the police were also forced to dispel a rumor that there was a shooting outside the Laundrie house. The department said it was called for a report of gunshots, but there was no evidence any had been fired.