It remains a mystery as to who and why someone fired shots into the Pleasant Hill Town Hall last week.  Deputies were called in after a city employee found several bullet holes in the door and window frames.  Investigators are trying to figure out if the shots came from a random shooter or someone who had it in for the city.  From the appearance of the holes, the shots came from a small-caliber gun. The Sheriff’s Department is asking that anyone with information about the shooting to call them at 484-6176.