Entertainment | John Henson Muppets' John Henson Dead at 48 'Sudden massive heart attack' kills Jim Henson's youngest son By Polly Davis Doig Posted Feb 16, 2014 5:57 AM CST Copied John Henson, son of the late Jim Henson, in Lake Buena Vista, Fla., in this 1990 file photo. Henson died of a "massive heart attack" at his home in Saugerties, NY, on Friday, Feb. 14, 2014. (AP Photo/FILE) John Henson, the youngest son of Muppets' creator Jim Henson and a puppeteer himself, has died of a massive heart attack at the age of 48, reports People. The Jim Henson Company confirmed Henson's death via a Facebook statement, saying that he died Friday "while at home with his daughter" in Saugerties, NY. Henson, who served on the board of his father's company, leaves two daughters and a wife. Read These Next NC mom missing for 24 years doesn't want to be found. FBI chief Kash Patel showed up in the Team USA hockey locker room. Jack Smith's report won't ever see the light of day. Deepak Chopra to Jeffrey Epstein: 'Bring your girls.' Report an error