In "Murder rates in states with and with without death penalty", generally, murder rates are getting decresing. Murder rates in non-death penalty states are even lower than in death penalty states.

As time passes by,people's thinkings are getting changed. They know what is wrong or not and they also want to make peace. This is because most American parents want their children to be protected from comitted crime in advance. But even now, however, the people who reside in death penalty states commit more crime than the others who reside in non-death penalty states. Probably, the strict law makes them angry.And they are against the law of the goverment.

by Park,Jae-Yul