You can press a button and a person of your choice dies. Not painfully. You don't have to do anything and nor does anyone else.They just drop dead.
Is there anyone you'd press it on? I guess my question is, is there anyone you'd murder if you (nor anyone acting on your behalf) would have to actually do anything.
There are people who come to mind but I think I'd say no. Knowing that a few people would likely say yes about me and the fact I think they'd be wrong to as I don't think I deserve it would make me hesitate. I can't truly know someone like I know myself and so I can't trust myself to completely understand them and make that decision. I couldn't be responsible for that.