According to Phil Plait, James Randi ended up in the hospital for a heart problem that required bypass surgery.     Randi is probably best known for his ruthless skepticism of all sorts of paranormal skullduggery, most famously his attacks on spoon bending Israeli Uri Geller.  In 1973 he worked with the Tonight Show to change the metal items that Geller was supposed to bend on the show, with somewhat predictable results.

Best wishes for a quick recovery.

[tags]James Randi,Uri Geller,Skeptic[/tags]