Homicide is the death of a human being.
Manslaughter is one manner of death which is a crime.....as is Murder....as is Natural Causes.
Having some understanding of Law helps in these discussions.
There is some reason to accept the local Prosecutor moved forward with the charges as it has been done.
What say we save the argument about the criminal charges for the Courts and limit this discussion to the aviation aspects of it instead.
The one comment that does relate to aviation that is similar to the liability of police officers that also pertains to pilots is the risk of criminal or civil prosecution for how we conduct our professional duties.
It is tragic enough to get crippled or killed in an accident then wind up in Court afterwards as the Defendant in a legal proceeding.