Legally, could Harold Camping go to jail for what he is doing?

he should be but sadly, as the last person said, we here in the home of the "free" can say what we want and not get in trouble with the law (angry civilians though, could beat the hell out of him). also he has stated multiple times that he has not told ANYONE how to spend their money (though he never said "no dont give me your life savings) so that legally absolves him from any lawsuits