and countered with the cross-examination of defense, but i think for jurors to hear that, there's no way that it would not have an impact. it was certainly delivered in a way that almost sent chills through you, brooke. >> let me talk about this, martin. thank you. mark nejame, let's bring mark back in and hln legal analyst, correspondent jean casarez, faith jenkins, and defense attorney danny cevallos and on the phone with me larry kobrinsk. you have testified in a number of dna cases and you said this dr. bao was the worst witness ever. why? >> well, it was an unmitigated disaster for the prosecution. to end with dr. bao, it couldn't be worse. for example, he prepared a script which he brought with him which would describe how he would answer potential questions.