Comment on Death of Waterloo woman shot while driving remains a mystery

WATERLOO, Iowa — Iowa investigators are working to determine who fatally shot a woman while she was driving in April.The Waterloo-Cedar Falls Courier reports no arrests have been made yet in the April 28 death of Micalla Rettinger. She was a former softball player at the University of Northern Iowa who was driving home from work at a bar with two passengers when the shooting happened.Rettinger died and one passenger was hurt in the shooting that happened in a remote area between Waterloo and Cedar Falls on Highway 218.Police Maj.