A police sniper kills David Lee after Lee aims a gun at hostages , police say . Three hostages are unharmed , officials say . Devices in backpacks used by Lee have to be kept safe , police say . He also pulled a handgun out and was waving a handgun . '' A Discovery spokesman says the police knew of Lee , did not take his threats seriously .
A police sniper kills David Lee after Lee aims a gun at hostages , police say . Three hostages are unharmed , officials say . Devices in backpacks used by Lee have to be kept safe , police say . A Discovery spokesman says the police knew of Lee , did not take his threats seriously .