The FBI said Thursday that agents had received a YouTube comment about becoming a "professional school shooter," but were unable to identify who posted it, despite the commenter's username being the same as the suspect in Wednesday's deadly school shooting in Florida.

During a press briefing in Parkland, Fla., special agent in charge of the FBI Miami Division Rob Lasky said the post indicating the user wanted to be a “professional school shooter,” did not contain any time, location, or identification information that would indicate who the person was who posted the comment.

“In 2017, the FBI received information about a comment made on a YouTube channel,” Lasky said during Thursday’s briefing. “The comment simply said, ‘I am going to be a professional school shooter.’ No other information was included with that comment which would indicate a time, location, or the true identity of the person who made the comment. The FBI conducted database reviews, checks, but was unable to further identify the person who actually made the comment.”

Later in the briefing, a reporter asked the special agent if they were able to confirm if the suspected shooter, 19-year-old Nikolas Cruz, was the person who left that YouTube comment.

“We do not know if it is the same person,” Lasky said.

The YouTube commenter had the same name as the suspected shooter, but Lasky says he was “not willing at this time” to say if the commenter and Cruz were the same person.

“We did our database checks, we could not positively identify him. We‘re going back, we’re scrubbing the information, we’re looking at it again,” Lasky said.