It wasn't a intended to be a framing of this particular case.
It was meant to highlight the potential for broad interpretation on it if some limiting principles aren't established.
The limiting principles are already established. Gross criminal negligence directly leading to someone's death. That's involuntary manslaughter in most jurisdictions and can be other crimes as well, depending on local laws.
What makes this rather interesting, as well, is that the son who actually committed the murders is being tried as an adult.
Seems like that should be an either/or type of situation.
If you look at the prosecutor's opening statement:
"This case is about this defendant and his actions -- his actions in allowing a child that he has custody over access to a firearm and ammunition after being warned that child was going to harm others."
The basis of the charges against the father are that he allowed his child to access the firearm and ammunition, and giving a child access to those things represents a point of negligence (for which the adult would be responsible)
The type of negligence being referred to on the part of the father is, in part, predicated on the custodial nature of his son (Colt) being a child.
In essence:
"You're on the hook for giving a kid access to a gun, because he's a kid, that's very irresponsible"
but then
"We're going to try Colt as an adult"
There are a number of misconceptions to unravel here:
1. Trying a child as an adult does not mean that they are considered an adult in all aspects of their life (especially retroactively). It's an acknowledgement that an especially severe crime was committed; one that cannot necessarily be chalked up to "youthful indiscretion," and one that merits a more severe punishment.
2. Regardless of how he is tried or whether or not he's now considered legally an adult, he was - physically and legally - a child when these events took place, and his father had no reason to treat him otherwise. The father's trial is about his actions
at that time and acting
under that knowledge.
3. You're mischaracterizing the prosecution's argument. They were not arguing that it's irresponsible to give a kid access to a gun in a general sense, but rather that Colin should have known that it was irresponsible to give
his child, in particular, access to a gun based on his past behavior.
4. I see no reason why the age of the shooter matters here. If you know that a person reasonably poses a danger to people, and you give them (or allow them unfettered access to) the means to be a danger, and they do end up hurting people because of it, you should bear some responsibility. It doesn't
really matter what that person's relationship to you is or how old they are.
So, to me, it seems like it should be
"Colt gets tried as a juvenile, his dad gets the "grown up" punishment"
or
"Colt gets tried as an adult - implying he's old enough to be responsible for his own actions - and the father gets negligence charges"
As opposed to what they're currently doing, which is selectively choosing when Colt is or isn't an adult for the purposes of charging two people for the same murders.
Multiple people can commit crimes in connection to a single murder. This is not a novel concept. They both got "grown-up" punishments for the "grown-up" crimes they committed. Colt has been charged as an adult with "malice" murder (a Georgia thing, I guess). Colin was tried for involuntary manslaughter and 2nd degree murder (which, in Georgia, is the killing of a child via abuse/negligence, regardless of intent).
To be crystal clear, the second scenario you proposed is
exactly what happened. Colt is being tried as an adult with the Georgia equivalent of 1st-degree, premeditated murder. His father was tried for two charges that are both tied to his supposed negligence, and the jury agreed that he was, in fact, criminally negligent and therefore guilty. It's just that Colin's criminal negligence was determined to rise to the level of a felony.