He said: “She could have been killed. “What they don’t understand is that this could have been fatal, it’s a moving vehicle. “There needs to be a clamp down on this from all parties. “There’s a nationwide issue with young people firing rocks at birds and cars, it’s happening here too now. “Police and ambulance crews need to go into schools and properly educate students on how this can’t keep happening.” The boys, believed to be aged around 13 to 14, were seen holding rocks from the bridge. The speed limit along the Broadmayne is 30mph. Jo Timson, 54, who ...