Prosecutors call it second degree murder, and the analyst said it was possible trayvon martin touched the gun but left no dna. we'll take to our panelists, keith sullivan, dan schur. you got the sense that maybe the prosecution was holding back, they were going to sort of end with something big, but now it appears that maybe trayvon martin's mother takes the stand and then that's it. >> when she testifies and says she can hear her son and recognize her son's voice calling for help right before he is killed that would be emotionally powerful and a good way to end. however, on an evidentiary lev...