Do you support the Death Penalty

[minionofmidas]

To me, if you take someone's life, you forfeit your own life.

Absolutely.
And that person's previous crimes have nothing to do with it. And the legal situation has nothing to do with it. And abetting murders - say, financing your state's department of corrections despite its exercise of the death penalty - is the same as committing them.
And noone but you has the right to enforce your own sentence.