On a warm summer evening half a century ago, June 9, 1959, 12-year-old Lynne Harper (inset) of Clinton, Ontario, quarrelled at home with her parents, Leslie and Shirley, before setting off after dinner toward a nearby school playground. There she met a slightly older schoolmate, who had his bicycle. She asked for a ride to a nearby highway. Steven Truscott agreed. Lynn clambered onto the handlebars of the 14-year-old boy’s bike and they pedalled off. It was a brief ride that would set in motion a 48-year-long chain of events that shattered two families; that horrified a community; that subverted justice and forced a country to question its morality and the virtuousness of its criminal justice system.