Why these roller coasters are closed after a rider's death at Six Flags in Georgia

Following a fatal incident involving a rider at Six Flags Over Georgia, amusement parks have placed certain roller coasters under scrutiny. In response to the tragedy, nine attractions at Six Flags have been closed.

The safety concerns extend beyond the initial park. SeaWorld Orlando has taken the step of shutting down its Mako roller coaster because it was manufactured by the same company that built the ride involved in the fatal incident at Six Flags.