Comedian Kevin Smith nearly died from a major heart attack, the filmmaker revealed on Monday, February 26. Forty seven-year-old Smith tweeted in the early hours of Monday ? ?After the first show this evening, I had a massive heart attack. The Doctor who saved my life told me I had 100% blockage of my LAD artery (aka ?the Widow-Maker?). If I hadn?t canceled show 2 go to the hospital, I would?ve died.