Four days after Brian Laundrie went missing from his house in North Port, Florida, his parents reportedly handed over all firearms to the law enforcement, except one that was missing. However, it is unclear whether it was the same gun that Brian used to shoot himself.

"While law enforcement was at the Laundrie home on Sept. 17 to complete the missing person report for Brian, we volunteered to surrender all guns in the home to avoid any possible issue going forward," Laundrie family attorney Steve Bertolino was quoted by New York Post.

"While retrieving and taking inventory of the guns, it was realized one pistol was missing," he said.

The attorney said Tuesday that the autopsy report has confirmed that Brian died of a self-inflicted gunshot wound to the head. 

"Chris and Roberta Laundrie have been informed that the cause of death was a gunshot wound to the head and the manner of death was suicide," Bertolino said. An official autopsy report is yet to be released. 

The FBI has not yet said if the officers found any firearm near the site where Brian's remains were found. They had also refused to comment on whether Brian should be considered armed and dangerous during the manhunt, said a report by Fox News.

Not just the law enforcement, even Bertolino had declined to answer the questions about firearms then. He said this was because of "concern that it would create panic or attract armed vigilantes" to the Florida nature reserve where Brian went missing. 

"We didn't want the public going into a frenzy on that. I don't think they considered him dangerous to anybody he met on the street," Bertolino told reporters earlier. 

Meanwhile, the District Twelve Medical Examiner in Sarasota said they used "DNA analysis" to identify Laundrie. They had initially used dental records.

Slain YouTuber Gabby Petito's family did not comment about the autopsy report. 

They were "aware of the suicide determination" but the family "was asked not to make any comments and let the FBI continue the investigation," Petito family lawyer Richard Stafford said in a statement Tuesday. 

"The family was also asked to wait for the United States Attorney's Office to make a determination on whether any additional individuals will be charged," Stafford added. 

Brian's remains were found at a Florida preserve on Oct. 20, a month after he was reported missing by his parents. The FBI recovered his skull and skeletal remains, along with his backpack and a notebook from a previously submerged location in Myakkahatachee Creek Environmental Park.

Brian Laundrie Brian Laundrie in an image from a police bodycam released by the Moab City Police Department in Utah. Photo: Moab City Police Department / Handout