I really hate that this happened. I would love to know the cause of death once they figure it out. Was the little one's brain shaken too much...internal organs, etc..
I remember, way back when, I went out with a girl who worked at Disneyland. She invited me to the employee opening of Space Mountain (Anaheim). There were about a dozen people who were injured - back hurt, whiplash, etc - when they walked off the ride.
The decided to lower the speed from 82 to 62 miles an hour.
I must say that it was better at 82 mph but I was hurting at bit afterward myself - and I was a 19 year old so I can imagine young children or senior citizens.