Political assassinations are an all-too-common occurrence, and they often become major landmark events. Luckily, many attempts to murder a political figure don't succeed, and a life is spared. Even those events, though, become important events in our history. In one of the most famous incidents, John Hinckley, Jr. tried to assassinate President Reagan in 1981.The president suffered a puntured lung, but survived the shooting. Here's a look at some of the most famous failed assassination attempts.