Ron Palillo – Horseshack From ‘Welcome Back, Kotter’ – Dead At 63

From palmbeachpost.com: Ron Palillo, best known as mouthy classroom goofball Arnold Horshack on the 1970s TV series Welcome Back, Kotter, died at his Palm Beach Gardens home early this morning, according to Stacy Sacco, Palillo’s friend.

Sacco said Palillo passed away suddenly at 4:30 a.m.

He was 63.