If you had the same brain, uprising, memories, environment, friends, neighbors, parents, and exact same sequence of events in your life, you would make the same decision.

This is not apologia for the imperialism or murder. It just means any one of us could have been the murderer if we were born in the wrong place. This also doesn't mean that life is "deterministic", just that our decisions and behavior is formulated entirely by our memories and experiences.