Question regarding moral concept...?

Question:

Question regarding moral concept...?

In high school speech and debate team I was taught a concept in moral philosophy.

It regards doing something immoral to to achieve an end that was more moral than the action.

For example: If you could go back in time and kill Hitler to spare the atrocities committed by him, the moral lapse of the killing was more or less negated by the fact that the killing saved millions of lives.

There is a name for this concept, does anyone know it?

Additional Details

1 week ago
Answer is Consequentialism. Thanks for the help guys.

Best Answer - Chosen by Asker: 1 week ago
Answer is Consequentialism. Thanks for the help guys.