Bourbon Street terror attack, Trump Tower Cybertruck explosion probe launched by Senate committee

They are also requesting more information from Meta about Jabbar's Facebook activity leading up to the deadly, planned attack, noting that the Texas native motivated by ISIS extremism posted five videos to his Facebook page hours before he drove a truck through New Year's revelers on Bourbon Street.

"The public deserves complete transparency and the truth regarding the New Orleans terrorist attack and the Las Vegas car explosion," the chairmen wrote. "While we understand the investigation into both of these incidents is ongoing, we expect your agencies to be forthcoming and responsive to oversight requests from Congress on this very serious matter."

"These are major public events that a SAC should be present for. The FBI failed to note this in any of the joint briefings it provided to Congress and must provide more information," the chairmen said.

The chairmen note in their letters that Jabbar served in the U.S. Army between 2007 and 2015. He "was apparently deployed to Afghanistan from February 2009 to January 2010" and later "reportedly joined the Army Reserve as an information technology specialist until 2020."

Livelsberger, who served as an Army master sergeant, was from Colorado Springs. He had "enlisted as a Special Forces trainee and served on active duty from January 2006 to March 2011, then served in the National Guard from March 2011 to July 2012, and in the Army Reserve from July 2012 to December 2012," the chairmen wrote. He re-entered active duty in December 2012 with U.S. Army Special Operations and was on leave from his duty station in Germany at the time of his death.

While the FBI has said there was no connection between the two incidents that occurred on the same day, Grassley and Johnson note that both perpetrators overlapped during their military service at Fort Bragg and in Afghanistan, and they both rented vehicles from a company called Turo.

The FBI continues to investigate the Bourbon Street attack.

Jabbar had visited New Orleans on two occasions prior to the Jan. 1 attack - once on Oct. 30, 2024, and again on Nov. 10, 2024. The terrorist also visited Cairo, Egypt, and Toronto, Canada, prior to the attack, the FBI said.

While Jabbar apparently acted alone, authorities are still investigating whether he had any accomplices.