How Did Horshack Die?

How Did Horshack Die? “RIP Ron Palillo, aka Horshack, dead of a heart attack eary this morning at age 63. A classic TV character, that laugh will live forever,” tweeted Gary Collard. What ever happened to horshack? Ron Palillo, who played Arnold Horshack on “Kotter,” died of an apparent heart attack in Florida on Aug.