It appears that the Prosecution is deliberately trying to invoke a mistrial because this one is going so badly.
A mistrial will give the prosecution a second chance at prosecuting Kyle, and erase Grosskreutz’s prior testimony that Kyle didn’t shoot him until he pointed his own gun at Kyle.
Defense called the Prosecutor out on this ploy, and wants a mistrial with prejudice so that there won’t be another trial.
IANAL but I don’t think a mistrial on other grounds would “erase” his prior testimony given under oath. I think it would still be admissible in any future trial if they have one.
I don’t think the judge would have given a directed verdict, even though it seems like he should have to the viewing audience. Too much of a political hot potato. But the judge seems to have admonished the prosecutors a few times already maybe they finally crossed a line. Eager to hear more details...