On July 27, 2011, the staff of the Guns Galore gunstore in Killeen, Texas, near Fort Hood noted that Abdo bought an unusually large amount of smokeless gunpowder, three boxes of shotgun ammunition, and a magazine for a pistol. A clerk notified the Killeen Police Department, who tracked Abdo to the Best Value Inn and Suites. Coincidentally, Guns Galore was the store in which Nidal Malik Hasan bought the FN Five-seven pistol used in the 2009 Fort Hood shooting, as well as the store where the killer in the 2014 Fort Hood shooting allegedly bought his pistol.