Just correcting my previous statement that both had undiagnosed medical conditions as the second death was a woman with high blood pressure. My apologies.

An autopsy by Dr. Jan. C. Garavaglia, chief medical examiner for the district that includes Orange and Osceola counties, found that the first person (a boy of four but within the height limit of 44 inches) died of a heart attack caused by a previously undiagnosed, rare heart disease that gave him an enlarged heart flawed with scar tissue.

Another autopsy is pending for (the second person, aged 49), though a preliminary report said she had severe high blood pressure and died of a stroke.

The warnings before te ride include, among other things, that people with heart conditions or high blood pressure should not ride.

Apparently, 11 million people have been on the ride since it opened in 2003.