Here's an update with some selected quotes.
"Formal charges of making a terrorist threat in the first degree are now pending against Dmitriy Andreychenko, police say."
"Missouri is an open-carry state. But its laws do prohibit gun owners from displaying their weapons in a threatening way. For instance, even someone who holds a valid conceal-carry endorsement and is openly carrying a gun can run afoul of the law 'if the firearm is intentionally displayed in an angry or threatening manner, not in necessary self-defense.'"
https://www.npr.org/2019/08/09/7497...ed-after-causing-panic-at-walmart-in-missouri
"Formal charges of making a terrorist threat in the first degree are now pending against Dmitriy Andreychenko, police say."
"Missouri is an open-carry state. But its laws do prohibit gun owners from displaying their weapons in a threatening way. For instance, even someone who holds a valid conceal-carry endorsement and is openly carrying a gun can run afoul of the law 'if the firearm is intentionally displayed in an angry or threatening manner, not in necessary self-defense.'"
https://www.npr.org/2019/08/09/7497...ed-after-causing-panic-at-walmart-in-missouri