QUOTE (Kalapse @ Jan 17, 2010 -> 12:46 PM)
There's a reason why every High School gym now contains a difibulator, these kinds of things do happen and surprisingly often at that. According to the coroner Gaines lived for 26 years with an undiagnosed enlarged heart, you don't have to be on drugs to go into cardiac arrest in your younger years, there are many basketball and hockey players that can attest to that.
I had a friend (late 20s, maybe early 30s) who was at school at SIU Edwardsville who had a heart attack in class. Luckly someone was quick enough to find a defibrillator down the hall... it saved his life. as far as anyone know, he was completely healthy.