We have not been talking about cats and dogs, humans were a given.Nope. That is your own concoction, not a definition provided by any source. The definition includes the words "human being" and omits any reference to innocence. Your agenda is showing. Now go get a link to a real definition.
So it's murder if your attacker dies trying to kill you ? If your car brakes fail and someone dies as a result of this failure ?
Intentional and innocent are highly significant.