Would you kill the person who is about to kill?

[Clueless Morgan]

Impossible to say for sure but if I accept that I know that this person is about to be killed and my actions in killing their assailant would definitely save this person's life, I hope I would save them.

The reality is probably closer to "see what's happening, have the initial instinct to help, dilly-dally about whether I would be prosecuted for murder in the assailant's stead, wonder if I put my own life at risk by intervening, talk myself out of action due to selfishness, chastise myself for being so selfish, decide to help but discover in the meantime that the person I was going to save had been killed, spend the rest of my life regretting my indecision."

[paulpablo]

So, you see an individual that is about to kill another person. You don't know the killer or the other person (both adults, let's leave kids out of this, both same race and sex). There are only moments to stop the killer and your only option is to kill. Not wound, not talk, not call police.

Would you kill?

It depends on other circumstances, like what weapons does he have what weapons do I have and so on, but the answer is probably not.

[SofaKingHigh]

I'd kill them both.

[Whateverist]

Hell kill them all and let god sort them out.