School bus hits car, pillar and commuter bus in Baltimore, killing 6

At least six people were killed when a school bus hit a car, careened into a pillar and struck a commuter bus in southern Baltimore on Tuesday morning, according to local police.
The bus was on its way to pick up a student, police say — there were no children on the bus at the time of the accident.
The series of crashes began when the yellow school bus struck the back of a Mustang. The driver of that car was injured, according to law enforcement officials.
 Serious injuries reported i