You don't think carrying a rifle in hand while masked is a threatening posture? I consider myself a reasonable person... I think ski-masked and carrying an AK style rifle near a school is warranting alarm. what are you even complaining about? the umbrella guy wasn't detained or arrested, he didn't have guns pointed at him. police recieved a complaint that an individual thought she has a guy masked with a rifle near her school, less then three months after guy with a rifle shot up a school. police responded, investigated, determined no crime had been committed, that the complaint was incorrect and left. That's the end of it. what complaint can you possibly have about that?
"Demeanor" is a subjective measure. if the Umbrella guy was in fact carrying a rifle with a ski mask on that's all the demeanor that's required. remeber the complaint was that the rifle was "in hand" meaning he was holding it, not slung over his back. carrying in hand is asking for the police to talk to you unless you're in a legal hunting or shooting area. Find me a judge and jury in this state who will find you not guilty of .270 for carrying a rifle, masked, near a school.