There was no disparity of force during the altercation and thank god he didn't pull the trigger. So many more lives could have been affected had he done that.
If the judge lost his objectivity, then let the pizza man appeal his verdict when his sentence is handed down.
The OP did the right thing, and it's completely human to have the emotions he's feeling.
SIG 1911 .45 ACP
SIG P229R 9mm
Beretta BU9 Nano 9mm
Beretta 84FS .380 ACP
Ruger MKIII 22/45 Target .22LR
PWS (Primary Weapons Systems) MK114 5.56