Testimony in the trial of the wife of Pulse nightclub shooter Omar Mateen is nearing conclusion. Mateen killed 49 people in his assault on the Orlando, Florida, club in June 2016. Noor Salman, 31, is accused of obstruction of justice and aiding and abetting her husband and providing material support to a foreign terrorism organization. Nancy Grace looks at the trial with lawyer Jason Oshins and psycho analyst Dr. Bethany Marshall. Also, the trial of Brooke Skylar Richardson, the teen accused of killing her newborn and burning her body in her family's backyard, is set to begin April 16. Nancy updates the case with investigator Sheryl McCollum, psychologist Caryn Stark, Juvenile Judge Ashley Willcott, and reporter John Lemley

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