Three men entered a jewelry store in Oak Brook, Illinois Monday with the intention of robbing it. One man, who was in possession of a four-pound sledgehammer, smashed a display case upon entering. An armed security guard told him to put the weapon down, but the attacker refused. He came at the security guard, who then shot the assailant once in the abdomen. The other two men fled the scene in a black SUV. Police are still looking for the two accomplices. To read more about this story, please click here.