In the fall of 1990, drivers hit three pedestrians on Elbow Drive in the span of a week—including a seven-year-old boy. It ignited a decades-old debate about speed limits and led city hall to create a long and contentious playground zone. We tracked down the boy's parents, and a former community organizer, to learn what happened.Support independent Alberta journalism! Sign up as a Sprawl member at sprawlcalgary.com.