Whenever and wherever guns are deployed there will, sooner or later, be shooting, and sooner or later the innocent will be hurt.

The answer IMO is not to ban the guns, but to tackle the reason for their deployment, then we might stand a chance.

Just as any self-aware individual has things in the past which he/she regrets and wishes could be otherwise, I doubt that there's a single military unit anywhere without something regretable in its history, whether it is acknowledged or not.

In this case it seems a little early to judge, unless prejudice can be a substitute for facts.