"It's not ok" is a value judgement. I am not implying that a death penalty means bad things never happen. I support death penalty because I value an orderly and safe society more.
In the form I would accept, it would be used on people convicted of heinous crimes, some of which will be innocent, with the effect that fewer heinous crimes occur.
In the form I would accept, it would be used on people convicted of heinous crimes, some of which will be innocent, with the effect that fewer heinous crimes occur.