Police say on December 3, Preston Dean Murski told the teller of Prosperity Bank on Yale, "Give me the money bags. I'm having a bad day, you don't want a bad day."
According to court documents, Murski was tapping his fingers on a gun that was tucked in his waistband. A security guard and other employees were unaware the bank was being robbed, but saw the man run from the scene.
A picture of Murski was captured by bank cameras and shown by the media, which led police to his identification.
Murski is charged with aggravated robbery with a deadly weapon. He's in jail and bond has been set at $50,000.
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