AL.comRedstone Arsenal: Lockdown lifted, 'potential active shooter' incident under investigationAL.com1:57 p.m. Heavy traffic in and out of the arsenal. Access to Sparkman Building remains limited with ongoing situation at facility. 1:31 p.m. Arsenal officials have not confirmed if tomorrow's scheduled live shooter drill will continue as planned. 1:15 ...Redstone Arsenal lockdown lifted after 'possible active shooter' alertFox News'Possible active shooter' reported at Army's Redstone ArsenalCNNThe Latest: Lockdown lifted at Alabama military postWashington PostUSA TODAY -ABC News -New York Daily News -Business Insiderall 135 news articles »