In schools stuff like nationality or race or if the shooter was originally from that school or had a reason to hate the school and wanted to get revenge and make themselves feel better. People can also be on drugs and not know what they're doing.
Jack believes that they no longer need the conch because they know who to listen to and who to allow to speak. They no longer need to conch to decide that. This shows regression because they learned to effectively choose someone to speak without needing the conch to do it for them.
Well, for a correct sentence you would go for, "My Grandmother, God rest her soul, was the best cook and baker I knew."
I would think that comma would be the best punctuation. Hope this helps!
