Were you at that specific gun show?
Have you been attending shows in that area for all those years?
I'm not necessarily disagreeing with you, but I am inclined to give the benefit of any doubt to the owner of the weapon, and not to the cop who wounded innocent bystanders with it.
No, I have not been to that specific gun show. Between common sense and insurance requirements, there is bound to be signs posted there. Convention Centers do NOT like negative publicity or liabilities. These people could sue the building owners which leads to another scenario. Was it staged for the insurance? It is unfathomable in my mind it was not posted “No Loaded Firearms”.