If you shoot at a bank robber because you are in fear for your life or the life of others, and miss striking and killing the child down the street;
The bank robber has committed the murder. You may have committed manslaughter or even aggravated manslaughter but you have not committed murder.
If I did it I would consider it murder because of my carelessness. I was trying to make a point about accountability and you mince words...waste of time.