AR-15-style rifles in a gun store (image via Depositphotos) The 19-year-old gunman who opened fire at a St. Louis high school on Monday, identified as Orlando Harris, was armed with an AR-15-style rifle and what appeared to be more than 600 rounds of ammunition. All of it legal in the Show Me state. Continue reading “St. Louis School Shooter Had AR-15-Style Rifle, 600 Rounds Of Ammo”