answerman, that applies to every murder. Wolf’s question, however, is about the fact that Moshe Rabbeinu saw future generations of that Mitzsh, who he killed, and so what was he seeing. Wolf went on to assume that Moshe Rabbeinu manipulated the future, hence the rest of the thread.
This was all because of the mistake of confusing Moshe’s looking into the person’s generations with Hashem’s knowledge of what will actually happen.