It doesn't sound like the deceased was responding to an attack, but instead was instigating one.
I think someone who pulls out a gun in the presence of uniformed (and armed) police offers can expect to be shot at, irrespective of the presence of a dog.
Stupid is as stupid does.
Again, for the Nth time, this account is from the Chief who was NOT at the scene, and this account does not coincide with eyewitness accounts.
I have no issue if the guy pulled his gun and threatened police or civilians having his brain turned into sidewalk paste. However if they unleashed a dog on him, and he defended himself against the dog, and was shot for that and that alone, that’s dubious.