An Indianapolis firefighter accused of shooting his neighbor during an altercation in Johnson County last month will not be charged.Dean Keller, 49, was accused of shooting his neighbor, Jeffery Weigle, 59, four times in the chest, sending him to the hospital in critical condition.Weigle addressing Keller by saying, "Hey asshole," before adjusting a portion of the fence that borders their property. He then says "I see you got the slut out," in reference to Keller's wife. Weigle then gets onto his riding lawnmower and starts to ride off.Weigle backs up his lawnmower and flashes a gun at Keller. Keller pulls out his own gun and fires at Weigle, hitting him four times in the chest during an exchange of multiple shots.