jurors have plenty to think about. prosecutors went ahead and rested their case and defense started to call their first witnesses. what happened when the mothers of both trayvon martin and george zimmerman took the stand. they gave contradicting testimony. we are going to have a live report. all the latest that next. new developments in the fireworks disaster in california. platform suddenly collapsing. sending pyrotechnics shoot into the crowd. what we are now learn being the fireworks company's past safety record. >> started out smaller and got bigger and bigger and bigger. and -- it was within 20 seconds. but when it went across and hit into the crowd, that was about when it settled down. >>. [ whimpers ]