more probative. but then we move out to text messages, and things we know that zimmerman was not aware of, and we move from probative and probably way more prejudicial. >> we have to take a quick break. we'll dig deeper into what they've been arguing about today. a defense computer re-enactment of the zimmerman-martin struggle. we'll show you next and show you the technology that went into it. we'll be right back. my mantra? alys go the extra mile. to treat my low testosterone, i did my research.