As the FBI continue their investigation of the high-profile Gabby Petito case, two witnesses from Louisiana have shared valuable information from an incident they witnessed last month.

Nina Angelo and her boyfriend Matt England were vacationing in Jackson, Wyoming, when they witnessed a “commotion” between Gabby Petito and her fiancé Brian Laundrie.

The travelling couple were leaving The Merry Piglets Tex-Mex restaurant on August 27th, where Nina noticed that Gabby was in tears and seeming distressed.

Brian was also visibly angry, going in and out of the restaurant serval times and being aggressive towards the eatery staff.

The berated waitress was also visibly shaken by the incident, who told CNN that she did not see any violence or physical altercation between Petito and Laundrie.

Gabby was reported missing by her family on September 11th and her remains were found in Grand Tetons National Park on September 19th.

Following an autopsy report, FBI and the Teton County Coroner ruled Petito’s death as a homicide, however the cause of death is yet to be determined, pending final autopsy results.

Brain Laundrie remains the number one person of interest in the case, after he returned to his home in Florida in Gabby’s van without her, and is refusing to cooperate with police.

After the witnesses in Louisiana have come forward, and a potential sighting of Brian in a Florida town, the FBI have issues an arrest warrant.

According to the arrest documents issued by the FBI, the warrant is “pursuant to a Federal Grand Jury indictment related to Mr. Laundrie’s activities following the death of Gabrielle Petito.”

“While this warrant allows law enforcement to arrest Mr Laundrie, the FBI and our partner across the country continue to investigate the facts and circumstances of Ms. Petito’s homicide,” FBI Denver Special Agent in Charge Michael Schneider said in a statement.

Image credits: Instagram @gabspetito

This article first appeared on Over60.