It doesn't meet that reauirement just because he says so. Dunn's account defies credibility because his complaint with the Durango was that the music was too loud. He couldn't hear a threat even if there was one.
Note that sequence matters. You cannot be the first to introduce threats, and then claim self defense,
like Dunn done did here!!!
unless you attempt to remove yourself from the situation, say by ... physically moving away.
kind of like what the kids in the Durango did here.
This case just proves that just because a shooter has a CCW license, it doesn't mean that [s]he used the gun lawfully.
You say that Dunn has not proved his account simply because he says so (I agree), but then you claim that the party in the Durango has proved an account that I have not even seen made, that Dunn made verbal threats!
We do not know how this will come out. Dunn is in a bad spot even if everything he has said is the truth.