Let's put it this way: how many incidents of violence did you NOT hear about because simply brandishing a gun was enough to diffuse a situation or deter a would be criminal?
Please do not presume that this is some black and white issue where simply banning guns would solve all problems with gun violence. The implication that 2A supporters are all psychotic "gun nuts" who choose guns over innocent lives is a slanderous , oversimplified strawman, which only serves to further entrench divisiveness.