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To be up all night. but another analyst said the bottom line is thats not relevant to showing whether or not zimmerman acted in self-defense, so they probably wont call him up. but if they do, get ready because thats going to be interesting. >> brian todd for us, thank you very much. "the situation room" continues now with my colleague, john berman. john? >> thanks so much, brianna. have a great weekend, if you have one. -- captions by vitac -- www.vitac.com happening now, gripping testimony...