BURBANK, Calif. -- Actor Mark Sheppard says he's lucky to be alive after experiencing a cardiac emergency.
Sheppard, who starred in the series "Supernatural," collapsed in his kitchen.
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He posted on Instagram a picture of him lying in a hospital bed at a hospital in California.
The 59-year-old says he survived six heart attacks and was brought back from the dead four times after a complete blockage in his artery.
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Sheppard says if it wasn't for his wife, the Los Angeles Fire Department, and the hospital, he wouldn't be alive.