Ten people are dead at the scene of a fatal prison bus wreck near Penwell, Texas, about 15 miles outside Odessa.   Leland Maples with Loved Ones of Prisoners said Sheriff Mark Donaldson told him two officers and eight prisoners have died. Donaldson confirmed 10 were dead.   Sgt. Elizabeth Barney with the Texas Department of Public Safety with DPS and Sheriff Donaldson told the Odessa American  the bridge was icy when the bus drove over it, causing the bus to drive off the bridge. Donaldson said the bus struck the train in the middle of the train cars, at which point the train dragged the bus for a bit before coming to a stop.