I'd prefer everyone comes out of such encounters alive. At the point these folks thought someone might have a weapon, the prudent thing to do is hold back and

I'd prefer everyone comes out of such encounters alive. At the point these folks thought someone might have a weapon, the prudent thing to do is hold back and carefully plan your next moves. One of the first things would be to verify your suspicions - that there was, in fact, a gun. They knew going in that folks hold things that can be mistaken for guns. Like phones and a myriad of other things - even during normal activities like running. Protocol should reflect that knowledge and err on the safety of everyone. Things change if there are actual shots fired from that direction, but caution before such time.