A tip for you would be murderers out there: if you kill someone, it's probably not going to help you stay out of jail if you then brag about it on Facebook. In this case, a teenager in France posted about the murder he had committed, and then told his sister that he did so to brag about it (not out of any kind of remorse). His sister then turned him in.

There certainly have been plenty of stories of incredibly dumb criminals bragging about their crimes on social networking sites -- only to realize too late that the police use such sites too. The latest is a bank robber who bragged about the robbery on Myspace, saying "On tha run for robbin a bank Love all of yall." Of course, the police didn't happen to notice this until they were tipped off by someone who recognized the guy in a television report that flashed a photo of the suspect. However, it makes it a bit harder to defend when the guy effectively confessed on MySpace.