that little clip and we have more. the prosecutor is dismantling one of two defense witnesses they were going to use to rebuild the story that jodi arias killed in self-defense. yesterday basically what he god this man to admit is she lied on her ptsd test, and today he was trying to rebuild that, but the prosecutor was not taking that at all. take a his listen to this exchange. >> you don't know that, do you? >> no, i don't. i'm speculating. >> right. made it up right now. >> no. >> clinical judgment. >> sergio, just used the word speculating, didn't you? >> okay. i used the word. >> sure. and speculating means it could be made up. right? >> yes, that's one possibility. >> all right. thank you. reporter: quite a gotcha moment.