that's where that expert testimony is going to be so crucial as these jurors will have to go over and probably debate at length the expert test they received that eddie ray routh made to various hospitals in years leading up to the murder of chris kyle and chad littlefield. all of that we presume played a big role in the jury room. >> ed lavandera, thank you very much. we showed you images on the highway when this suspect was arrested after stealing chris kyle's vehicle after the murders. for perspective on the closing arguments, all the jury has been asked to consider. i want to bring in danny cevallos and jeffrey toobin. insanity defense usually doesn't work. very skeptical. any reason to think this case will be different? >> i don't. although i think the defense has put on a better case than i expected. there is one question that the