The victim said his gun was in his car, and that he chose not to get it. He was being punched by multiple attackers while his baby, in his carseat, was just a few feet away. His only choice in this was believing he could get to his firearm if he needed it. He is fooling himself.
I'm not here to point out whether or not he would have been justified to shoot in this instance, but I am here to point out that if you don't have a gun physically on your person, and that you actually think you can get it in time to fend off criminal violent acts, well, you're as wrong as breast cancer.
You are wrong, and what's even worse then knowing you yourself are wrong about this? Is that you can be dead wrong about it, say, tomorrow.
If you can get in your car, you have already initiated escape. Any return to the scene of the instigation by criminal aggressors would yield you an aggravated assault charge, or murder. It's happened in Memphis before, it will happen again. Once it was over a parking space at a Panera Bread in Cordova. Two start yelling at each other, old guy gets in his car, returns with pistol, shoots young drunk dude, and old guy justifiably gets murder and decades in jail.
Don't do stupid things with stupid people at stupid times in stupid places. Carry your gun. If it's "in your car" it might as well be on mars when the dozen of attackers get you on the ground for the head-stomps. EDIT: for clarity, my "maybe not the best decisions" mentioning is of this good samaritan's words to this crowd of teenagers when he exited the store with the little old lady. Personally, I don't think initiating communicating with a crowd like this and asking to draw their attention is wise. That's all I'm saying about "stupid things in stupid places."
Luckily, the kids negotiating with this guy's life decided mercy this day.
Carry your gun. Don't depend on the mercy of evil people.