Then there is no reason that any further case of any kind should be brought to court. If the D.A. never took the case to the Grand Jury because they thought the case was Justifiable Homicide, or the Grand Jury No-Billed the individual, then that should be it. Period.
Someone who obeyed the law should NOT be forced to keep defending themselves against civil suits cooked up by some lawyer looking for a settlement. The person should not have to go through the emotional stress of a trial, have themselves treated like shit by the media, and possibly have themselves ruined financially.
And let me be crystal clear here.
Someone who is killed in what is found to be a case of Justifiable Homicide is NOT a victim.
They were the aggressor, or the perpetrator, or more often they were probably just another habitual criminal who got themselves killed committing another crime.
Yes, SYG and Castle Doctrine were passed EXACTLY for the reason stated in your first sentence.
SYG has been pushed to avoid court cases that were clearly self defense.