"[...] despite not having his prescribed dose of Adderall during trial hours."
So he's not being given his full prescribed amount? WTF. Give it to him.
I don't really care if this guy is trying to use ADHD as an excuse for his crimes or not. I DO NOT want judges and lawyers deciding if I really need my prescribed meds or if maybe I can get by on half. I would call that a human rights violation.
Just give him his damn prescribed meds. Full stop. His ADHD is then off the table as a possible excuse.
Of some formulations, yes, there is a shortage going on like a year now. Nothing in the article indicates that it is why this dude isn't having his prescription made available to him.