Forensic audio analysis of the moments shots were fired at Donald Trump indicates there were at least two shooters attempting to kill the former president, contradicting the government's lone wolf narrative, according to a PhD researcher.

In a video published to X on Thursday, Dr. Chris Martenson walks through his investigation of audio picked up from microphones located in two different places at Trump's rally in Butler, Penn.

While the official story has claimed the only two gunmen that day were would-be assassin Thomas Matthew Crooks and the Secret Service Counter Sniper that shot him, Martenson says his research "conclusively proves that two (and possibly three) weapons were fired at Trump and the assembled crowd."

Martenson's research builds on forensic audio analysis noted by CNN, which on Sunday published an article claiming "Audio forensics suggest as many as three weapons fired at Trump rally."

In the article, CNN wrote audio researchers at the National Center for Media Forensics at the University of Colorado in Denver noted the analysis "suggests that as many as three weapons were fired" at the rally.

CNN also noted: "Audio analysis has also confirmed that the gunman was about 360 to 393 feet from the podium, according to forensics expert Robert Maher," which Martensen said lines up with his research.

"This should not be information you get from me. This should already be part of the national dialog and we should be getting routine updates from the FBI about how they are going about locating the second (and possibly third) shooters," Martensen says.