John Titor hit the headlines when he claimed to be a military time traveler who was reporting back from the year 2366. He made several vague predictions starting from events that were due to happen in 2004. There was quite a buzz surrounding him, however, many of the events failed to materialize which led to many believing this was some sort of elaborate hoax.
A special investigation even claimed that they found the people who made it were brothers from Florida. The legend lives on, and you can still visit their website for more information on the predictions.