Panola County Coroner Gracie Grant-Gulledge (center), accompanied by police and firefighters, wheels South Panola student Marcus Henry from the scene of a mock wreck Thursday morning at the high school. The “Shattered Dreams” scenario included two “wrecked” automobiles and student actors to demonstrate a head-on collision, Medstat ambulances, an Air Evac helicopter and other local responders who worked the scene as if it was real. The wreck scenario climaxed with parents learning their child had