I have not read the official report. I'm just commenting on what i've read of the account from you all. First off, it's super sad that a girlfriend (bystander in this dick pissing contest) was put in harms way by both parties, and ultimately lost her life. Second , the lack of restraint and smarts by both men is the reason she is dead today. Both, the man who shot her ( murderer), and the boyfriend (accessory to the murder) are at full fault of this situation by letting it escalate. When Miller was called by his friend , did Miller tell his friend to leave the area. Deescalate the situation. Obviously Miller shouldn't have brought the gun to his friend. That was a bad move. Maybe his friend is an overbearing guy who scared Miller. Maybe Miller was afraid his friend might do something to him if he didn't. If it was for protection, his friend should have called the police. This ain't the OK Corral. What's done is done. Only Miller knows. That's some tough baggage to have to carry.
I'm not going to judge the mom. Her baby is gone . Her pain is forever . Not sure i wouldn't be blaming everyone involve in this tragedy as well.