I believe you have it backwards.
There is one juror holding out for a "guilty" verdict and the rest have compromised on a "not guilty by reason of insanity" verdict.
Of course, the defense attorney wants the holdout juror removed from the panel.
That’s what I said....or tried to anyway.
But yes, I believe there is one hold out for a guilty verdict.
It is also my personal opinion that the one holding out is doing so for moral reasons, not wanting to let what they believe is a murder go free, so the best they can do is hang the jury to have a clear conscience.
If placed in that situation that’s exactly what I would do.