Chappell, 67, died Tuesday morning along with five other people when the school bus he was driving rear-ended a car before colliding with an oncoming Maryland Transit Administration bus. The NTSB and Baltimore police have also obtained four surveillance videos that show the school bus on its approach to the crash site, but none shows the collision, Morrison said. Another aspect of the investigation concerns Chappell's medical records and driver's license. He said family members, like investigators, are awaiting his father's autopsy results, which could show if he suffered a medical emergency. Helen Morgan, the mother of Maryland Transit Administration bus driver Ebonee Baker, who died in the crash, questioned why someone who may have suffered from seizures would be allowed to drive a school bus.
Source: ABC News November 04, 2016 23:03 UTC