An American Muslim blogger who calls himself HijabMan says he condemns the shooting rampage in Tennessee.
The gunman used a quote from the blogger in his high school yearbook, saying: "My name causes national security alerts. What does yours do?"
The blogger, Javed "HijabMan" Memon, wrote in a statement on his website that he wishes the gunman hadn't quoted him "just as I'm sure Ford wishes OJ (Simpson) hadn't driven a Bronco and Kraft wishes Jim Jones hadn't poisoned the Kool Aid. Obviously, none of these products made them do it or endorsed their actions, just as I do not endorse this heinous act."
Memon said he tries to combat Islamophobia, promote tolerance and use humor to defuse tensions.
"This man's actions, and his use of my material, go against everything I am trying to accomplish," he said.
Memon said Abdulazeeb is "giving life to a stereotype that I am trying to defeat."
"Islam doesn't stand for the killing of innocents," he wrote. "It is antithetical to our values."
Investigators are trying to determine whether Abdulazeeb, a practicing Muslim, was radicalized during trips to the Middle-East. He had also battled depression and substance abuse.