The instant someone pulls a gun trigger, they assume legal responsibility for the path of the bullet, and everything it does along that path.
If I fire a shot in justified self-defense but miss and kill someone else, I can (and should) be charged with manslaughter. That makes good legal sense, as far as I can tell.
In some states if you rob a bank and cop shoots at you but misses and hits and kills a bystander, then YOU the robber who did NOT shoot anyone will be charged with manslaughter.
that is sort of what is happening here.
So if a policeman is willfully negligent and doesn’t keep up his target practice, his own lack of skill could result in someone else being charged with manslaughter. I disagree: If anyone is charged, it should be him—though I do recognize the court would rightly not hold him responsible if a reasonably competent person couldn’t have been expected to do better.
If it worked that way, perhaps people would think twice more often before discharging a firearm - and fewer people would be harmed.