The Girls Next Door Hugh Hefner son Cooper: It's hard to watch my dad "struggle" 08/28/2017 Hugh Hefner's youngest son says it's hard to watch his dad "struggle" in his old age. Read More RELATED NEWS Hugh Hefner died from cardiac arrest and was dealing with E. coli infectionKendra Wilkinson, Bridget Marquardt, Pamela Anderson, Kim Kardashian and more mourn Hugh HefnerHugh Hefner, 'Playboy' founder and former 'The Girls Next Door' star, dies at age 91 TAGS: Crystal Harris Hugh Hefner
