(AP) — A judge has fined an 88-year-old woman $100 for backing over and killing a former state senator while driving in a Lincoln parking lot.

The fine was the maximum punishment on the traffic infraction. Imogene Bruce, of Lincoln, had pleaded no contest on Wednesday to careless driving. Authorities say former Sen. Jennie Robak died Jan. 3 after the accident in a grocery store parking lot. Police say Bruce accidentally accelerated when trying to stop as Robak walked behind her car.

Bruce said before her court hearing that she was sorry for what happened. Bruce’s lawyer says Bruce has given up her driver’s license.

Robak represented the Columbus area in the Legislature from 1989 until 2003.