You don't think we are arguing about who's right and who's wrong, do you? I am arguing for the right to be innocent until proved guilty.
Some are arguing for a Kangaroo Court of their opinion.
Except, we're not the representatives of the state in the form of the law courts. It's not as though if we decide that the McCanns are guilty that we are going to arrest them and put them in prison.
I'm not sure who's arguing for a kangaroo court. We are allowed to think and have opinions, unless you're suggesting that we just behave like zombies whenever the McCanns appear on TV and simply nod our heads and agree with everything they say, and should not be permitted to think "hm, hold on a minute" because then we will be violating their civil rights.
Certainly, the judicial system should deem everyone indicted as innocent until proven guilty and courts should provide a fair process. But, according to what you're saying, no one would ever be indicted of anything and no case would ever be brought to court because for the police even to classify someone as a suspect would be violating the principle of "innocent until proven guilty".