@mobilian33 - I have to admit that I am sometimes quick to dismiss ideas that cannot be backed up with scientific evidence. This is one reason I was a bit surprised when I took a trip to New Orleans for vacation. This is a modern U.S. city and we live in the 21st Century, but there are many people in this city who still believe in voodoo, and who practice voodoo.
By the way, many of the people who believe in voodoo are well educated professionally successful people, so the belief should not be dismissed as something held by only people with limited educational backgrounds.
Basically, I am saying that I agree with the premise of voodoo death as it is mentioned in this article. The mind is very powerful and it has a way of making reality out of many of the things we choose to believe in. So if you believe in witchcraft then it can harm you, at least indirectly.