Video shows a man storming into a bank and opening fire like a madman. The chaos began the moment he walked in, randomly opening fire. You can even see the muzzle flashes. >> We need multiple medic units. We have three confirmed victims down inside of uh the ground floor. >> Within minutes, police surrounded the bank, creeping in on the shooter. And that's when all hell breaks loose. [Applause] Incredibly, this bank employee survived being shot 12 times. I'm