Alan Sacks Dies: ‘Welcome Back Kotter’ Co-Creator & Disney Channel Producer Was 81

According to a statement from his wife, producer Alan Sacks died at 81 after his mantle cell lymphoma took an "aggressive" turn in recent weeks.

Deadline
Alan Sacks Dead: Co-Creator of 'Welcome Back, Kotter' Was 81

Film and TV writer-producer Alan Sacks, who co-created the popular 1970s series "Welcome Back, Kotter," died Tuesday.

Variety
"I was held at gunpoint by Phil Spector, for like 5 hours!" - ALAN SACKS, Kotter, Mystery Show #MysteryShow #Kotter #AlanSacks
"It was 1980." - ALAN SACKS, Kotter, Mystery Show #MysteryShow #Kotter #AlanSacks