I couldn't follow the logic of that question at all. If person X believes thing Y, person X believes thing Y. No logic enters into that. So if Sutcliffe thought he was doing the will of god, of course he felt justified. Obviously Sutcliffe follows a different logic to mine, so I can not argue with that.

The question "do I think it is justified that he thought like that" has no semantic meaning to me. What is it supposed to mean?