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Ron Palillo, best known for his role as Arnold Horshack on the 1970s TV sitcom "Welcome Back, Kotter," has died, the Palm Beach Post reports. He was 63. He died at 4:30 a.m. at his Palm Beach Gardens home, a friend, Stacy Sacco, told the paper . Palillo had been teaching at the G-Star Academy, a Florida charter school. He previously taught at his alma mater, the University of Connecticut, according to Corporate Artists , which employed him for speaking gigs.

(CNN) -- Robert Hegyes known for his role as Juan Epstein on the '70s sitcom "Welcome Back, Kotter," died on Thursday. He was 60. Hegyes was transported via ambulance from his home in Metuchen, New Jersey, Thursday morning, and was in full cardiac arrest by the time he reached the hospital, Steven Weiss, a spokesman for the JFK Medical Center in Edison, New Jersey, confirmed to CNN. "He was pronounced dead shortly after he arrived there," Weiss said. Hegyes' brother, Mark Hegyes, told The Star-Ledger that the actor had suffered a heart attack a couple of years ago and was...

Robert Hegyes, the Jersey-born actor who played Jewish Puerto Rican wheeler-dealer Juan Luis Pedro Phillipo de Huevos Epstein on the 1970s classic "Welcome Back Kotter," died from an apparent heart attack after suffering chest pains at his Metuchen home this morning. He was 60.

To all of you potential change agents out there, here's some useful background and tips from the change master - Harvard's John Kotter. It's one thing to see change coming. It's quite another to convince organizations to do new things as a result, or to turn around an ailing organization. If you're a right winger reading FreeRepublic, leading change is a big deal for you. Be prepared!