then we see the cops everywhere. a group called american freedom defense initiative was holding a contest at the center to award a $10,000 prize for the best cartoon depicting the prophet muhammad. they drove up, got out and opened fire on the security officer. reporter: the officer was shot in the leg and is already out of the hospital. garland officers that were close by saw what was going on, engaged the two men, shot and killed them both there at the scene. the bomb squad was called to the scene and nearby businesses evacuated. back in january, 12 people were killed by islamic gunmen in an attack against the paris office of the newspaper charlie hebdo which had satirized islam and used depictions of muhammad, considered blasphemous by muslims. ryan owens, abc news, dallas. this conference was being live streamed on youtube last night when the shooting took place and it was showing a man being interviewed.