You are correct Antipitas. Anyone who can read that story and say the shot was justified can only be basing their judgment on a preconceived notion of how these events typically play out.
Several posters have mentioned Holmes injuring, attempting to kill, or "bashing" Grutel's mother. Several others operate off of the assumption that Holmes had a history of violence. The news story never mentions any of this.
Remember, they were arguing when Grutel started shooting.
(That is of course, according to the news article's interpretation of the police report's interpretation of Grutel's interpretation of the events.)
More recent articles add that Holmes came towards or "charged" Grutel.
Anyone familiar with, "It's comin' right for us!" It's always a poignant reference when you hear about the phenomenon of humans "charging" one another.
Holmes version of the story might sound like this based on the very same statements Grutel made:
"Ok I was arguing with my son's mother. We were screaming and cursing and carrying on and my son started shooting. She and I ran inside. She starts screaming and attacking me, so I grab her. It was half to calm her down and half because I was scared out of my head. My boy comes in and shoots again so I figure... this is it. I let go and say, "Look, son..." *BAM* I'm shot, I go down."
With very little facts, it is impossible to say what happened. The above scenario used the same statements from Grutel that you used to create your version of events.
Quick, now someone post "Whatever, I'm glad he didn't get charged."