Week in Review: Tennessee Tornadoes, UPenn President, Michigan School Shooter, Trump Gag Order, and Sickle Cell Disease

Tornadoes and strong thunderstorms in Tennessee leave at least six people dead and cause widespread damage, while the president of the University of Pennsylvania steps down following criticism for her testimony about antisemitism. The Michigan school shooter is sentenced to life in prison without parole, an appeals court upholds a gag order against Donald Trump in a federal election subversion case, and the FDA approves two gene-based treatments for sickle cell disease.