Investigators continued their probe of Tuesday's collision involving a school bus driven by a 67-year-old man and an MTA bus.
Thursday, state officials questioned whether or not the driver of the school bus, Glenn Chappell, was legally able to drive it in the first place.
New video, obtained by ABC2 from the surveillance camera at a gas station along the 3800 block of Frederick Ave showed the school bus pass what appears to be the gray Mustang at a high rate of speed.
Officials said the school bus ran into a gray Mustang before colliding with the MTA bus further down the road.
The video is time stamped at 6:30 a.m. Tuesday, hours before federal investigators with the NTSB were seen outside the offices for AA Affordable Transportation, the company contracted by Baltimore City Schools to transport students.
Among files in the investigation were documents sent to Chappell's home by the MVA, telling him as of Aug. 31, he was no longer authorized to operate a commercial vehicle. The letter, signed by the CDL Medical Certification Unit, a division of drivers services, states they had not received a copy of Chappell's medical examiners certificate.
The certificate is given to a driver once they complete a yearly physical by a physician registered on the National Registry of Ceritified Medical Examiners, according to a spokesman for the MVA. The certificate would state Chappell was medically fit to drive, and is required in order to maintain his commercial drivers license.
One of Chappell's five children defended her fathers record, speaking for the first time.
"(I) don't know about that, but in order for him to be driving, he had to be up to par," said Maia Chappell.
George Bogris, who's representing AA Affordable Transportation denied the MVA's claim.
Federal law requires companies to maintain records on drivers' qualifications. Chappell's certificate was good until through June 2017, said Bogris.
The MVA spokesman said it's possible Chappell could have taken the paperwork only to his employer, and not the to the MVA as well.
Investigators have pointed that no skid marks were at the site of the collision, indicating the fact that no breaks were applied before the crash.
They're also exploring whether Chappell had some kind of medical emergency.
