Luigi Mangione might not be famous-but he's at the center of one of the most shocking murder cases in recent history. He's accused of killing UnitedHealthcare CEO Brian Thompson outside a Manhattan hotel last December. And now, as his legal battle unfolds, a major update just shook the case. But, don't get it twisted. Mangione's still facing serious time, and the drama inside and outside the courtroom is only heating up.RELATED: (UPDATE) U.S.