They are, but if a criminal shoots another criminal I really don't care. I'm more interested in how many non-criminals use a gun in defense. And since he says typically, we can assume there is illegal behavior in most defenses. So going from 2.5 million with criminals to 100k without really isn't a big stretch.
Yes....someone approaches you in a threatening manner....you draw you weapon they ran away...technically, until you can prove you were under a threat, you have broken the law against brandishing, you might be hit with reckless endangerment.....so like I said...there is too much to know before you dismiss the study on your belief they are all criminals....
Or you shoot, miss, and the guy runs away....discharging a gun in public, a crime...and you have to show you believed you were under an imminent threat.....like that?
That is a good part of what he means......and why people don't want to answer the NCVS accurately.....