Prosecutor: Driver in deadly school bus crash was on phone

CHATTANOOGA, Tenn. — The driver in a Tennessee school bus crash that killed six elementary school students took a cell phone call at the time of the crash, a prosecutor said Tuesday.According to the Chattanooga Times Free Press, Hamilton County District Attorney General Neal Pinkston said in court that Johnthony Walker received a call at 3:17 p.m. that day that lasted nearly four minutes. Pinkston said the first 911 call about the crash came in at 3:20 p.m.Authorities said Walker was speed