[Retra]

It's not a clever argument, it's just the better of two options. If we are killing the guy because he might turn us in, then I should also just kill you because you've threatened to turn me in. There is no way that is a winning proposition for anybody, so it doesn't guarantee any safety for anyone.

If you're willing to kill someone to avoid jail, you better believe I would be willing to turn you in if you've already decided to turn me in because I don't want to kill someone. If we DO kill them, then by the same logic, I should have you killed to.

Threatening the person you are working with to "deal with threats" is just stupid. It just means you have to be dealt with as well.