On Thursday, a woman jumped off the Mackinac Bridge. Her body was found a couple of miles west of the bridge. What makes people do those things? This is the second person to jump off this year. It's such a steep drop that it's been likened to jumping from a building onto concrete. You die instantly. Police said that there were attempts to talk her down, but she ended up jumping from the south tower. Since the bridge was first built 50 years ago, a dozen people have committed suicide by jumping from it.