Personally, I doubt KR takes the stand if they have the high res. There is pretty clear video of all the shooting, no need to risk that to make his case. The more I think, even without intent, this has to be a mistrial. The only question is with or without prejudice.
One of the lawyers on the Rekieta stream said, "this is why I'm against the death penalty. Imagine someone being killed after a case like this". I would add, this case is not half as bad as many other capital cases.