CNN CNN Newsroom July 5, 2013 17:42:00
>> yes. >> can you tell us today what studies you consulted that led to your change of opinion --lim hearing is o richardson hearing. keep on topic for that. >> let me focus you on that. when did you change your mind about the significance of the thc levels of trayvon martin's blood? >> i don't remember exactly the time. could be in last 60 days. when we decide to have this trial i tried to prepare for this testimony. not every case will go to trial. >> you're saying that sometime in the last 60 days is when you changed your opinion on the effects of the marijuana? >> yes. >> did you mention t...
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