It sure looks like what happened overnight in New Orleans was a terrorist attack, in the same vein as the recent Christmas market attack in Germany.
This got me thinking about how we can prepare to be assets in such an incident, rather than a hinderance.
First, read this article "Responder Zero" at the Integrated Skills Group website.
https://integratedskillsgroup.com/2021/06/responder-zero/
As a matter of fact, I encourage you to read everything on that site. It's one of the best, if not the best prepping-related sites on the Internet.
Second, know basic first aid. The American Red Cross offers courses. Find one here: https://www.redcross.org/take-a-class/first-aid
Third, take a Stop the Bleed class from the American College of Surgeons. STB is focused on controlling bleeding injuries from trauma and stabilizing the victim until proper medical care arrives. An in person class is best but they also have online training in case you can't get to one in person.
Fourth, if you are legally able to, get training and carry a concealed firearm. In this incident, after he exited his truck with a rifle, the perpetrator was taken out by police. What if this happened at an event in which there were no police?
See my PDF ebook, "Guns for Jews" for beginner's guidance.