police and on the witness stand were mutually exclusive. he said i can't tell it's his voice. on cross-examination he was led by the government because can you do that on cross-examination and he said i listened to it 20 times because i wanted to know why the defendant chased my son. i have to tell you when he said that, the jury looked at him and two of them looked right at george zimmerman and one woman even put her hand over her mouth and kind of leaned forward. i think the defense had a great day today by using all of his friends to say they recognized his voice but it was a misfire calling tracy martin. >> the other thing was the toxicology report, showing thc, the base chemical in pot, in trayvon martin's system. it doesn't mean he smoked that day. >> i love this issue. it finds its analogy in dui law. marijuana is a unique substance.