Here we go again.....the word "accidental" and "firearm" simply don't mix in polite company.  Proper term would be....."careless or negligent handling of an firearm". Responsibility for any firearm going off lies with the person holding the gun.......not the poor gun (unless APD can find cause that the gun is mechanically flawed and malfunctioning.......when was the last time we read that, eh?).