Having said it before, freedom of speech does not justify unfair, untrue or slanderous comments and remarks about a person.
When something is almost certain and that the proposition being presented in court must be proven to the extent where there is no reasonable doubt in the mind of a reasonable person that a person committed an offense.
Moral of the story, don't convict a person without a trial. Unless of course he pleads guilty! How many times have you read the paper and decided about a person's guilt? Can you justly come to a conclusion without having considered all relevant facts and evidence?