Most active shooters get their guns legally—including at least 40 percent who obtain weapons “specifically for the purpose of perpetrating the attack."

Most active shooters get their guns legally—including at least 40 percent who obtain weapons “specifically for the purpose of perpetrating the attack." https://t.co/8IpjsPM8de pic.twitter.com/q0dT7OLvyC

— Mother Jones (@MotherJones) June 25, 2018