CNN New Day July 9, 2013 10:23:00
Stand. >> i didn't tell them no, that wasn't trayvon. i kind of, i think that chairs and the wheels on them, i kind of pushed away from the table and just kind of shook my head and said i can't tell. >> so your words were "i can't tell." >> something to that effect but i never said no, that wasn't my son's voice. >> reporter: defense attorneys also called up the owner of the gym where zimmerman trained to lose weight to demonstrate how a person could hold another down, adam pollacd got on top of attorney mark o'mara to show the jury. when describing his client's skill level -- >> he's still le...