Brian Laundrie's sister went camping with her brother and their parents over ...

Brian Laundrie's sister saw her brother twice between the time he returned to Florida without girlfriend Gabby Petito from their cross-country van trip and until he went missing, despite her public statements to the contrary.

A lawyer representing the Laundrie family confirmed on Friday that Cassie Laundrie saw her brother on September 1, when he came by her house, and again on September 6 during a family camping trip to Fort De Soto Park.

Attorney Steve Bertolino told the station WFLA that 'law enforcement agencies are well aware of these dates.' 

During an interview on ABC's Good Morning America on September 17 - two days before Petito's body was found in Wyoming - Cassie claimed that she had not spoken to her brother since September 1. 

'I haven’t been able to talk to him. I wish I could talk to him,' Cassie said at the time. 'I’ve cooperated in every way that I can. I wish I had information or I would give more.'

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Bertolino attributed the apparent discrepancy to a misunderstanding. 

'Any prior communication by Cassie that does not reflect these dates is simply a difference of relating an answer to a question misinterpreted by Cassie or poorly posed by the inquirer,' he said. 

Records from Pinellas County indicate that Roberta Laundrie, Brian and Cassie's mother, registered for a campground site at Fort De Soto Park between September 6-8.

The family's attorney said the whole family left the park on September 7. 

Brian's parents reported him as missing on September 17, telling authorities they had not seen him since September 14 when he went on a hike in the alligator-infested Carlton Reserve in North Port. 

Local police and the FBI have been searching for Laundrie, who has been named a person of interest in Petito's death, for the past 12 days.  

On Thursday, newly-released bodycam footage revealed that Petito told cops Laundrie had hit her and cut her face by grabbing her 'with his nail' during a domestic incident less than two weeks before she was last seen alive.

The never-before-seen footage from a second officer's body camera shows the cop pointing out 'new' marks on Petito's face and arm after pulling the couple's van over in Moab, Utah, on August 12. Asked if Laundrie had hit her, Petito answers: 'I guess.'

'He like grabbed me with his nail, and I guess that's why it looks, I definitely have a cut right here. I can feel it, when I touch it it burns,' she tells the officer. 

The 22-year-old, whose body was found on September 19, quickly backtracks and defends her fiancé saying she 'hit him first' when he locked her out of their van and refused to let her in. 

Body camera video from one Moab officer was released two weeks ago, while Petito was still a missing person, and in it portions of the conversation between the cop and the van-life couple were inaudible. This new footage from a second officer's body-worn camera offers a fresh look at the altercation that preceded Petito's disappearance and death.  

Meanwhile, the manhunt for Laundrie, who is currently on the run and is a person of interest in Petito's homicide, entered its 12th day, with the FBI and Dog the Bounty Hunter scouring separate areas in Florida.

FBI agents on Thursday visited the home of Laundrie's parents in North Port and collected personal items belonging to Brian to help in the search.

The focus of the search has now shifted to the Fort De Soto National Park, where Laundrie stayed with his parents after returning home from the campervan trip without Petito. 

In the newly released Utah police video, Laundrie is seen defending himself and pushing the blame onto Petito as soon as the cop arrives on the scene.

He claims Petito was 'really worked up' and that he 'was just trying to push her away' when asked about allegations he had hit her. 

Police in Moab, Utah, responded to a 911 call from a bystander who said they had seen a man slapping a woman outside the Mayflower grocery store before driving off in a white van. 

Bodycam footage from one Moab police officer was released on September 16.

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That footage shows Petito telling the officer she slapped Laundrie, while he is seen showing the cop scratches on his face and arm, which he claims were caused when she 'hit me with her phone'.

The cops determined Petito was 'the primary aggressor' and separated them for the night.

Now, the release of the bodycam from the second officer casts new light on the incident and what the couple told cops. Key moments of the cops' chat with the couple was inaudible in the previously-released clip. 

The two Moab police officers were also joined on the scene by two US Park Rangers, whose bodycam videos remain under wraps.  

Meanwhile, FBI agents arrived at the Laundrie home in North Port, Florida, Thursday afternoon to collect personal items belonging to the 23-year-old to help in the hunt. 

Last week, a probe was launched into the police handling of the August 12 incident and Moab City Police Department Chief Bret Edge has since taken a leave of absence pending the investigation. 

In the newly-released footage, Petit tells the officer Laundrie got 'frustrated' with her over her OCD and 'locked me out of the car.'

'I was just really stressed this morning trying to get a lot of work done and I was apologizing to him,' she says.

She tells the cop she was saying 'sorry' to her fiancé because of her OCD which meant she was 'organizing stuff'. 

'I get so stressed out. I have OCD and I was like organizing stuff and sometimes I get this mean attitude when I'm not trying to be mean and I was trying to straighten things out,' she says.