Karmelo Anthony, the teen who admitted to stabbing and killing a fellow high school athlete at a track meet in Texas, has been indicted on a first-degree murder charge. Austin Metcalf, 17, bled out in his brother's arms after the then-17-year-old Anthony attacked him in the bleachers of David Kuykendall Stadium in Frisco in April 2. Anthony, now 18, insisted he was acting in self-defense when he knifed Metcalf, however, he's never explained why he had a weapon at an event on school property. However, Tuesday, he was formally charged by a grand jury in the crime that has drawn...