ill doesn't mean -- everything he wrote in that book shows he's mentally ill. people don't understand, when you are in the middle of a psychotic episode, it's not just a few hours, it could be years. within that time you can be very meticulous as jacob said in that piece. you can be planned. you can be method cal and carry it out. >> how are they going to determine, which, if you will is going to be their ammunition? >> exactly. that comes down to the experts. i am sure you have heard this over and over again, the battle of the experts. the experts job is to explain to the jury why this person is insane or not insane. then it's the jury's job to understand what that education, that information they are receiving and be able to understand. it's very hard to jurors.