Tennessee bus crash: Mother of driver asks for compassion
(CNN) -- Chattanooga school bus driver Johnthony Walker tried to pull the children off the bus, his mother told CNN. But there was too much blood. Moments after the catastrophic crash Monday, Walker called his mother and told her what happened. " 'Mama, I love you. I have been in a drastic accident,' " Gwenevere Cook recalled her son saying. "He texted me minutes later saying the kids are dead."