Several historical figures, including Hitler and Joseph Stalin, have been called the anti-Christ have since been acknowledged NOT to have been. Any individual judge to be sufficiently "evil" and dangerous on an international scale may be temporarily deemed an "anti-Christ" until it turns out that they, too, are NOT an anti-Christ.
The Anti-Christ in Rev represented by the 666, is numerology for Nero. The emperor of Rome. So you can quit looking, he's already been killed, and it was not by Jesus, he died long before Nero became emperor.