I ask it in the way those annoying moral dichotomy type of questions are asked. The goal is to see what you would actually do or believe, not to get your opinion why the situation would never happen or why the situation is Forbidden. I agree with you completely on the notion that killing people is wrong, I find it sick how he was killed and how his body was treated, however I recognize that, in the following toy scenario, killing is the optimal choice from the set of available choices {kill, do nothing}: an Oracle reveals to you that if you don't kill Mr. Bob within the next five minutes, 5 billion people are going to die; do you kill him?

Even Gandhi recognized the right outcome here, but I agree with him that in most real cases the set of choices usually contains something else, such as maiming or more generally "disabling" to include relatively harmless things like tackling. (Hence I still criticize soldiers who shoot-to-kill brainwashed and/or insane kids coming at them with a machete for not shooting them in the knees or somewhere easier to hit but less likely to kill.)

My original question is dependent on you believing that there exists some real situation where killing one or more people makes the world better, the classic (sorry to Godwin the topic) being to kill Hitler to save who knows how many lives (regardless of if the war still happened). Since you've said you don't believe that, I guess I got what I really wanted to know. I should have just framed it that way to begin with. I agree with you that too many people falsely believe they could fix things, I don't agree with you that a single person couldn't fix things given the right opportunities such as being able to kill the most damaging 50k people.