Although I've heard about Alex Jones for many years, I really didn't know much about him until I stumbled on Infowars around 3 years ago. He's a wealth of information, and always strongly pro-America. Sure, he's loud, bombastic, but he obviously loves the country and wants what is best for America.
I have no idea what went on with him regarding Sandy Hook, but I believe its as you described - he might have said something about believing it was a staged Operation - but I believe he only said it once. And if he did, and if did say it a thousand times - so what? Everyone can have opinion. State your opinion and give your rationale.
The Deep State hates him because he says things that make them uncomfortable, and they want to take him out. The lawsuit against him was absurd.
I think the Deep State was threatened by him and so wanted to make an example of him, as they tried to do with Trump, the J6ers, etc. They figured if they could destroy these people, it would force other patriots into compliance and discourage them from speaking up