CNN Security reporter Jim Sciutto reported on December 4, 2015 that the Garland, Texas terrorists Elton Simpson and Nadir Soofi also pledged allegiance to ISIS.  Elton Simpson and Nadir Soofi attacked the  at the Curtis Culwell Center in Garland, Texas on May 3, 2015, with the goal of disrupting an event inside and killing one of the event participants.  They shot a security guard in the ankle.  Both Elton Simpson and Nadir Soofi were shot and killed by police.

On Twitter, minutes prior to the attack, one of the gunmen posted “May Allah accept us as mujahideen” with the hashtag #texasattack. He wrote that both attackers had pledged allegiance to “Amirul Mu’mineen”, a likely reference to ISIS leader Abu Bakr al-Baghdadi. The statements also requested others to follow an ISIS propagandist, Junaid Hussain, on Twitter. After the shooting, Hussain wrote: “Allahu Akbar!!!! 2 of our brothers just opened fire.