Child Dies on Disney Roller Coaster Ride

As reported by CNN, A 12-year old boy died after riding Rock 'n' Roller Coaster at Disney in Orlando, Florida. The boy, Michael Russel, was riding with his parents and 7-year old brother. He collapsed right after the ride.
Rock 'n' Roller Coaster is one of the most famous rides in the studio and, normally, the waiting time is long.
What can you expect? "Zoom from 0 to 60 mph with the force of a supersonic F-14, take in high-speed loops and turns synchronized to a specially recorded aerosmith soundtrack and zip through Tinseltown in the biggest, loudest limo you've ever seen. The 3,400-foot-long track is more than a half mile of sudden accelerations, dips, loops and twists and turns."
Scary.