Original sentence: A Department of Justice study found that only a hundred thousand crime per year are prevetned by guns.Gary Kleck is a criminologist at Florida State University who is a strong advocate against gun cotnrol.He has done statistical analysis of crime in the United States are argues that hile every year there are four hundred thousand crimes committed with guns, there are 2.5 million prevented by guns.Otehr studies have found widely differing numbers, however
Edited sentence: Gary Kleck was a long-standing and vocal advocate of strict gun control laws and thus was commissioned by gun control advocates to conduct an extensive scientific study of firearms ownership, especially handgun ownership, and it's relationship to and effects on violent crimes, especially "gun crimes".However, as a result of conducting this study Kleck changed his opinions to fit the facts his study discovered and he is now a strong opponent of gun control laws and a strong advocate of gun rights.More to come... including cites of this study...