Things get testy when Karen Read’s defense attorney confronts the prosecution’s star witness. The woman who wrote a children’s book about grief, only to be accused of murdering her husband, sends Dateline recordings from jail. NBC News legal analyst Danny Cevallos explains why it's taking so long for the judge to set a trial date in the case of the man accused of murdering four University of Idaho students. Plus, an expert breaks down cell phone mapping and how it might help - or hurt – Bryan Kohberger’s case.

NBC10 Boston is covering Karen Read's trial.

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