New Year's Day attacks: Army assigns roles to Shamsud-Din Jabbar and Matthew Livelsberger

The newly released military documents reveal that Matthew Livelsberger and Shamsud-Din Jabbar, who were both stationed at Fort Bragg and deployed to Afghanistan, never served together during the New Year's Day attack.

On New Year's Day, attacks were carried out in two major U.S. cities by both Livelsberger and Jabbar.

In New Orleans, Jabbar, a 42-year-old U.S. citizen from Texas, plowed a rented pickup truck with an ISIS flag attached to the trailer hitch into a crowd on Bourbon Street, killing more than a dozen people and injuring dozens more. Meanwhile, in Las Vegas, Livelsberger exploded a Tesla Cybertruck in front of the Trump International Hotel.

Early in the investigation, it was revealed that both men had served in the Army and were stationed at Fort Bragg, now known as Fort Liberty. They were deployed in Afghanistan at the same time, leading some to believe the two incidents were linked and that the two men collaborated.

On Sunday, Lt. Col. Ruth Castro, an Army spokesperson, stated that Livelsberger and Jabbar did not serve together, despite the overlap.

The Army assigned roles and locations to Livelsberger and Jabbar, indicating their positions and duties.

Jabbar, while on active duty, worked as a human resources specialist and was stationed at Fort Richardson, Arkansas, from January 2008 to September 2010. During that time, he was also deployed to Afghanistan from February 2009 to January 2010.

Between May 2009 and September 2010, Livelsberger was deployed to Afghanistan while stationed with the 10th Special Forces Group in Germany from February 2008 to October 2010.

Despite being deployed in Afghanistan at the same time, the Army stated that the two men were part of a group of up to 100,000 U.S. service members stationed in the country.

Jabbar and Livelsberger were both stationed at Fort Bragg, with Jabbar serving with the 1st 82nd Infantry Provisional from June 2011 to January 2015, and Livelsberger serving with the Student Support Battalion from December 2012 to October 2013.

In 2012, Fort Bragg housed 50,000 other U.S. service members in addition to the Army.

Last week, the FBI stated that they had not discovered any suspected links to terrorism related activities involving Livelsberger.

On Friday afternoon, during a press conference, Sheriff Kevin McMahill of the Las Vegas Metro Police Department discussed Livelsberger's battle with PTSD and potential reasons for the New Year's attack.

McMahill stated that while this incident is more public and sensational than usual, it seems to be a tragic case of suicide involving a decorated combat veteran who is grappling with PTSD and other issues.

On Friday, police officials released portions of Livelsberger's "manifesto."

"This was not a terrorist attack, but a wake-up call," Livelsberger wrote, according to the cropped notes shared by Las Vegas police. "The best way to get my message across is through a stunt with fireworks and explosives."

On the other hand, the New Orleans attack was evidently motivated by terror, authorities stated. Jabbar, who had sworn allegiance to ISIS, murdered 14 individuals and injured many more, according to authorities. Jabbar subsequently opened fire on the officers who arrived, prompting them to return fire and ultimately killing him.

Planet Chronicle Digital's Sarah Rumpf-Whitten contributed to this report.