Capital Punishment is an Unlawful and Ineffective Deterrent to Murder The United States is one of the few countries left in the world to practice the savage and immoral punishment of death. Retentionists argue that the consequence of death prevents people from committing the crime of murder. It is proven that the death penalty does not deter persons from committing murder, nor does it serve as an example of the consequences of capital crimes to society. Furthermore, it is impossible to guarantee that the criminal justice system will not discri ....