Suspect was arrested in Chicago on suspicion of ` ` terrorist threats and acts '' The woman in the school office was n't sure who had fired , LeCroy said . Police say that Brandon Hill , 20 , faces aggravated assault charges . Witness to CNN affiliate WSB : Shooter said ` ` he was not afraid to die '' Shooter was armed with an AK-47 ` ` and a variety of other weapons , '' police say .
Suspect was arrested in Chicago on suspicion of ` ` terrorist threats and acts '' Police say that Brandon Hill , 20 , faces aggravated assault charges . Witness to CNN affiliate WSB : Shooter said ` ` he was not afraid to die '' Shooter was armed with an AK-47 ` ` and a variety of other weapons , '' police say .