Let's consider four collections of people: A) Guilty people who don't deserve to be put to death. B) Guilty people who deserve to be put to death. C) Innocen

Let's consider four collections of people: A) Guilty people who don't deserve to be put to death. B) Guilty people who deserve to be put to death. C) Innocent people who don't deserve to be put to death. D) Innocent people who deserve to be put to death. D is empty, so let's just consider A, B, and C. I agree there are people in B. At the same time, it seems very hard to design a death penalty system that selects any of B without selecting any of A or C. I'd be very curious to hear what system you propose that is able to limit false positives more for A and C than death penalty abolition would. Unless you're able to, I, and a whole lot of other people, are more willing to support Charles Manson spending the rest of his life in a cell than murdering someone--or dozens or hundreds of people--to satisfy mob rage at the existence of Charles Manson type people.