An execution cannot be used to condemn killing. Such an act by the state is the mirror image of the criminal’s willingness to use physical violence against a victim. Additionally, all criminal justice systems are vulnerable to discrimination and error. No system is or could conceivably be capable of deciding fairly, consistently and infallibly who should live and who should die. Expediency, discretionary decisions and prevailing public opinion may influence the proceedings from the initial arrest to the last-minute decision on clemency.