I read the affidavit. I found it interesting that the police didn't release the fact the girls had said he had a gun on their recording, or the fact an unspent bullet had been found at the murder scene. So I assume by keeping this info back, the murderer didn't realise they knew about the gun and so didn't get rid of it.
However I'm not sure how an unspent bullet proves anything really? Surely the defence would argue it is circumstantial evidence and not linked to the murder.
I also can't believe it's taken them this long to arrest him considering he said he was on the trail, wearing those clothes, and other people saw him back in 2017. Seems incompetent?!