“Leap Day” was a bad day to be out for a walk. On the evening of Feb. 29, a pedestrian was hit by a car and killed on Route 372 in Cromwell, and another was killed on the Berlin Turnpike in Newington. A month or so later, in the last week of March, three pedestrians were killed in four days, including another on the Berlin Turnpike. As of April 16, 21 pedestrians have been killed across the state in 2024, two more than during the same period in…