There is a recurring and baffling phenomenon of drivers accelerating and plummeting out of parking garages, and it happened again recently in Illinois. We have theories about why this keeps occurring, and notably it is not limited to the United States, with similar incidents reported elsewhere.
Whatever the cause, mistaking the gas for the brake or misjudging a turn can have catastrophic results in a multi-level garage. The repeated incidents highlight how a moment of confusion behind the wheel can turn an ordinary parking structure deadly.