CNN CNN International May 15, 2015 06:15:00
Welcome back to the cnn newsroom. we have the latest on the investigation of the amtrak train crash in the city of philadelphia. officials say the train accelerated from 70 miles per hour to over 100 miles or 160 kilometers per hour in just seconds. cnn has obtained this exclusive surveillance vitdo showing the moment the train derailed. it was captured by cameras at a nearby tow company. you can see the sparks as the train flies off the tracks. the train's injured engineer has agreed to be interviewed by federal investigators but cnn is told bostian doesn't remember much, besides the crash, f...