“It’s indescribable.” That’s what one witness said of a 15-year-old boy’s handgun assault on his Kentucky high school this morning. It killed a boy and a girl, both 15, and wounded a dozen others. Police have arrested the alleged shooter, charging him with murder and attempted murder in the 7:57 a.m. attack at Marshall County High School in the western part of the state, with the shooter appearing to fire at students indiscriminately, said Gov. Matt Bevin. As authorities investigate the motive, legislators in Washington are again asking why children can obtain such weapons.