It's Unlikely He'd Been Mirandarised Before Handing Himself In.

https://www.tmz.com/2025/09/15/charlie-kirk-shooting-suspect-confession-discord/

https://twitterwithbraincells.blogspot.com/2025/09/that-fathers-certainly-not-going-to-be.html

So this could all be excluded as the fruit of an unlawful search. Leaving the prosecution with only the evidence they'd managed to gather.

Grainy surveillance footage alone isn't normally enough to support a charge.