Top 10 Arguments for the Death Penalty

This link gives the top ten arguments for the death penalty. One example of an argument for capital punishment is: life imprisonment changes. With that argument, the authors gives events on when the sentence of life imprisonment changes (with pardons and reductions of the sentence). I agree with this because most of the violent felons in our country are repeat offenders.
http://akorra.com/2010/03/04/top-10-arguments-for-the-death-penalty/