EMMA CZORNOBAJ was driving down a busy four-lane highway near Montreal late in the day on June 27, 2010, when she spotted several ducklings wandering helplessly along the concrete median. She quickly stopped her Honda Civic in the left lane, near the ducks. Witnesses claimed that, without turning on her hazard lights or closing the driver’s-side door, she jumped out of the car and tried to catch the meandering birds, which she planned to take home. Within a minute or so, a truck swerved into the right lane to avoid hitting Czornobaj’s parked vehicle. Behind that truck were two motorcycles. Pauline Volikakis drove one, and her husband, André Roy, drove the other, with their 16-year-old daughter, Jessie Roy, riding on the back. André crashed into Czornobaj’s car. Both he and…