Weapons like the military-style AR-15 rifle, which the 19-year-old Parkland school shooter bought legally, are designed to kill. Their bullets travel 3,000 feet per second, 2-3 times the speed of many common handguns. When they don’t kill, the injuries they cause are beyond…

As “students took cover under desks, fire alarms blared and teachers barricaded classrooms,” Nikolas Cruz shot 17 people to death yesterday in a Parkland, Florida high school, Florida’s Sun Sentinel reports.