

The Lawyers for the county/state/nation are in charge of deciding if there is enough evidence for an arrest. The charges for the man with the rifle are fairly straightforward. If you are committing a crime and someone dies, even if you don’t directly kill them, it is murder. Creating a panic in a crowd is a crime. All they need to prove in that case is he created a panic, and someone died because of it. They don’t need to prove intent to kill, just to scare the crowd.
For the man who pulled the trigger, it will probably be a lesser charge. He clearly didn’t intend to kill a bystander. So, they need time to collect evidence and to decide what charge to bring. That can actually take a while, and they might not feel that they can win a trial. In that case he would not be charged. It’s way more complicated in his case.
That is so cool that he is a candidate for release! I did not know that!