Capital Punishment: Cruel and Unusual?

My essay is argumentative on whether or not the death penalty is crule and unusual punishment or necessary means of punishment. Specific laws are quoted for the State of Washington. Other points brought up are: the wrongfully convicted and sentenced, procedure once found guilty, and other statistical information nationwide regarding means of execution and death toll.
In 2002, 71 inmates were executed in various states with in the U.S. 70 of the executions were carried out by lethal injection, only one by electrocution. The state that is notorious for carrying out the death penalty is Texas…