Police photograph a gun on the ground Wednesday, Dec. 24, 2014, following a shooting Tuesday at a gas station in Berkeley, Mo. St. Louis County police say a man who pulled a gun and pointed it at an officer has been killed. (AP Photo/St. Louis Post-Dispatch, David Carson)
Police photograph a gun on the ground Wednesday, Dec. 24, 2014, following a shooting Tuesday at a gas station in Berkeley, Mo. St. Louis County police say a man who pulled a gun and pointed it at an officer has been killed. (AP Photo/St. Louis Post-Dispatch, David Carson) David Carson AP
Police photograph a gun on the ground Wednesday, Dec. 24, 2014, following a shooting Tuesday at a gas station in Berkeley, Mo. St. Louis County police say a man who pulled a gun and pointed it at an officer has been killed. (AP Photo/St. Louis Post-Dispatch, David Carson) David Carson AP

Police release more surveillance footage of shooting in Berkeley, Mo. (VIDEO)

December 24, 2014 08:29 AM