Actually; were he under the influence of alchohol at the time it most certainly would be a criminal offence. Also there are laws regarding the allowable time frame in which the event is reported. Then we have the original point which was this; that all hunters are trained from day one to act in a certain manner that prevents these very things from happening; one of those proscriptions is know where your companions are at all times and be absolutely certain the field of fire is clear. If it could be proven that he was negligent in following these rules he would be a candidate for a lawsuit at the least. Experienced hunters don't have "accidents".