Is the death penalty justice or revenge?

[bedstuy]

The family is irrelevant, after all the punishment is the result of a case like "The State of Arizona vs. Johnson," not "The Family of John Q. Public vs. Johnson."

The justice element is fairly obvious and barbaric in a way I suppose.  It's an eye for an eye.  You took a life, we'll take yours.  That could be framed as revenge, but it's just in how you look at it.