The father/son duo will get charged. I believe they need to be as well. The victim was no model citizen whatsoever. He probably would have ended up in prison soon anyways.
They are charged - with murder - I don't know the Georgia penal code - but in FL we have form of homicide lesser than murder - where ur behavior was not intentional (explicit or implied) but reckless and as a result there is a death - this seems to be what the shooter should be convicted of - getting out of a car with a gun during an altercation in which the other person has not put ur life in imminent danger is reckless by all standards - the father is going to be convicted of something way less if anything at all
I didn't know the father was a former police officer in this town - I thought he was an investigator who assisted the DA's office in collecting facts - I have no clue what the policy is with retired officers - I could easily see him being legally permitted to "chase" after this guy after he saw exiting the house - regardless of whether he saw a felony committed - no one has brought it up but I think it's an issue