KEILAR: Just in to CNN. The FBI has officially concluded its investigation into the deadliest mass shooting in modern history. Fifty eight people were killed, nearly 500 were injured after a shooter opened fire from the Mandalay Bay Resort in Las Vegas in 2017 targeting a crowd attending a country music festival.</s>KEILAR: Josh Campbell is here with us now. Josh, you're a former FBI supervisory special agent. Tell us what we know here.</s>JOSH CAMPBELL, LAW ENFORCEMENT ANALYST, CNN: Brianna, after an extensive investigation, the FBI's Behavioral Analysis Unit to their Las Vegas Review Panel has determined that the gunman, Steven Paddock acted alone in this attack, as they indicate was neither directed, inspired nor enabled by ideologically persons or groups. Now, this is according to a release of findings that were obtained CNN after nearly 12 months of analyzing the evidence and information gathered by the FBI and the Las Vegas Police Department, the panel concluded that there was no single or clear motivating factor behind the attack and that Paddock's actions were inspired by obtaining a certain degree of infamy via a mass casualty attack according to the FBI. The bureau determined that Paddock's attack was not motivated by a grievance against any particular Las Vegas casino or hotel nor was it against any of the people that were there at the musical festival. Obviously, this will come as little solace to the family members. We know he committed suicide and nevertheless, after a lengthy investigation, the FBI is closing its case and releasing its findings, Brianna.</s>KEILAR: All right, Josh Campbell. Thanks for sharing that with us. And we're back in a moment.
The FBI Says It Has Concluded Its Investigation Into The Deadliest Mass Shooting In American History.