and makalya every second of every day. >> tonight, searching for justice after an unthinkable crime. he's accused of murdering 13 people during the fort hood shooting spree. now, it's time for major nidal hasan to finally face a judge. plus -- drugs in america. tonight, the startling new study that's forcing the question -- why are so many people getting high? gunfire ringing through the halls of one of the best hospitals in the world today as police say a man overwhelmed by his mother's condition pulled a gun and opened fire on her doctor. the shooting didn't stop there. it happened at johns hopkins medical center. investigators say the doctor had just told 50-year-old paul warren partis his mother had been left paralyzed. >> during the course of the conversation with the doctor, mr. davis removed a small