It was a private citizen who used his own firearm to stop Jihadi terrorist from harming more people at a mall in Minnesota this past weekend. American citizens have the right to keep and bear armaments for a reason. The 2nd Amendment prohibits government from attempting to violate that Creator-endowed right.
https://www.conservativereview.com/commentary/2016/09/heroic-cop-jason-falconer-stopped-the-st-cloud-jihadist
https://www.conservativereview.com/commentary/2016/09/heroic-cop-jason-falconer-stopped-the-st-cloud-jihadist