 On November 16 , 1993 Schultz had a laryngectomy after having had vocal chord tumors removed the previous May . He lost his voice for a period before regaining it after several months of home recuperation with the aid of a voice prosthesis that was inserted into a neck valve . Schultz suffered congestive heart failure on November 14 , 2011 , which required hospital care . He died on November 26 , 2011 , aged 78 . 
