He was predeceased by his wife , Barbara .
Jon Cedar died of leukemia at Providence Tarzana Medical Center in Los Angeles on April 14 , 2011 , at the age of 80 .
Jon Cedar was predeceased by Jon Cedar 's wife , Barbara .
Jon Cedar died of leukemia at Providence Tarzana Medical Center in Los Angeles on April 14 , 2011 , at the age of 80 .