There should be outrage if everyone walks away from this without any real consequences, there was significant negligence and disregard for safety on the movie set and it resulted in a death. This conviction should be overturned anyway. There isn’t even the illusion of fairness or justice when the state is allowed to hide and even destroy evidence as they have in this case. For the state to strip rights and freedoms from a person it is incumbent upon the state to prove that the person has committed the crimes of which they have been accused and to do so in a fair and open process.
If you’re interested in the worst of it you should look up firebombing and why it was so effective against Japan.