We have no way to prove if he was going to do it or not because it was stopped before it could have ever started. At this moment the guy can just deny he was only practicing open carry or any excuse he wants now because the actual crime didn't happen. We need to stay vigilante and sharp for anything. Always have a plan for your family and practice makes perfect.
An off-duty firefighter who had a firearm with him stopped a potential attack from taking place at a Walmart in Missouri after a 20-year-old man (Dmitriy Andreychenko) showed up to the store with a rifle, body armor, and over 100 rounds of ammunition.