• Brian had fled into the woods looking incredibly upset, the family's lawyer said
  • This is a tragic ending for both families, Steve Bertolino said
  • His parents are also unaware as to what was written in the journal, Bertolino said

As questions about the deaths of Brian Laundrie and Gabby Petito continue, the former's parents claimed they have no idea why their son left their house.

Brian had fled into the woods, looking incredibly upset, his family lawyer, Steve Bertolino, told TMZ. Bertolino added Brian's parents, Chris and Roberta, are clueless about what was going on in their son's mind, and they reportedly felt he was "out of sorts."

His comments come as several theories popped up on the Internet regarding the case, with many accusing the Laundrie family of hiding crucial information about the deaths.

Bertolino said Brian's parents are unaware about the contents of the journal, which was found near his remains at the Myakkahatchee Creek Environmental Park.

According to the lawyer, this was a tragic ending for both families, and he claimed his clients don't have any more information to help law enforcement solve the outstanding mysteries.

Last week, the FBI and the North Port Police Department found Brian's skeletal remains and personal items, including a notebook, in the Carlton Reserve in Florida. A comparison of dental records then confirmed Brian's identity, according to the FBI. However, a forensic expert said authorities may never find out when and how Brian died if the review of his skeletal remains stayed inconclusive.

Dr. Kathy Reichs, a forensic anthropologist whose books inspired the TV series “Bones,” reacted to reports that Brian's remains have now been forwarded to an anthropologist. Authorities are likely looking for trauma that would indicate he died by stabbing, slashing or gunshot, Reichs said. Brian's cause of death has yet to be determined by an autopsy report.

The 23-year-old was the only one named as a person of interest in his fiancée’s homicide case. Brian and Petito were on a cross-country trip together, before the former returned home on Sept. 1 alone. No one in his family reported Petito missing. 

The 22-year-old YouTuber's body was found on Sept. 19 at a national park in Wyoming, at least three weeks after the coroner estimated she was killed. The coroner ruled on Oct. 12 the cause of her death to be strangulation.

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