This source has case studies and information about states that do not have the death penalty and the violent crime rates as it relates to concept of deterrence of the death penalty. http://www.amnestyusa.org/abolish/deterrence.html
This source also looks at studies that were done through out the US proving that the death penalty is not a deterrent.
http://teacher.deathpenaltyinfo.msu.edu/c/about/arguments/argument1b.htm This source gives reasons why the death penalty is not a deterrent. It gives logical reasons and examples of why the death penalty should be abolished.
This source looks at criminologist's views on why the death penalty is not a deterrent but a waste of time, resources, and money. The criminologists suggest that just killing people is a waste to society as a whole.
This source looks at the different states in the US and suggests that just because a state has the death penalty doesn't equal lower homicide rate.
This source gives the history of why the death penalty is a deterrent. It also gives information of the death penalty for the United States versus the world. Another thing that the source does is look at the death penalty versus life in prison.
A pro and con website that shows both sides of the death penalty issue. The main point for the website is to try and convince everyone to pick a side when it comes to the death penalty.
This source shows indicators that prove that the death penalty is in fact a deterrent.
A pro death website that shows that anti death penalty has no proof or studies that are concrete proving that the...