According to Randa (1997), the first established death penalty laws date as far back as the Eighteenth Century B.C in the Code of King Hammurabi of Babylon, this codified the death penalty for 25 different crimes. Death penalty is the punishment of execution or took part in someone legally convicted of a capital crime. Although death penalty is the cheapest way to remove criminal from society, death penalty should be banned because it puts innocent life at risk and mentally ill people are executed. First, death penalty should be banned because it put innocent lives at risk. Once a prisoner is killed, nothing can be change to make amends if mistake has been made. There is considerable proof that many mistakes have been made in sentencing people to death. Since 1973, at least 156 peoples have been freed after evidence found that they were sentenced to die for crimes they did not commit (NBC 2013). According to Eckholm.E et al (2014), Henry McCollum and Leon Brown were put in jail and waiting sentence to die in 1983 for killing and raping a 11 year old Sabrina Bluie in 1983. After thirty years, they were wrongfully convicted for the crime according to DNA evidence. According to the Associated Press (2015), these brothers were awarded 750,000 dollar on 03 September 2014. It was totally not worth it because money can’t buy back the times with family. Cameron Todd Willingham is the next incident. Man who was wrongly put to die in 2004. According to The Washington Post (2014),