At first I didn't agree with having death penalty. But when you watch the news and see all those fucked up things people do without remorse, most likely you would want them dead too, especially if you're connected to the victims. The only problem is false accusations. Lets say they hang a killer because of manslaughter and after a week later they realized that he wasn't the real killer, well shit. You cant bring the life of that man back. as opposed to just jailing them.
At first i agree in death penalty because of the increasing level of crimes that we encounter nowadays and also i wanted to stop and decrease those crimes . But I believe that nobody in this world has a right to take a human life . We borrowed our lives from God . So, only God has the right to take our lives.
However death penalty is just like " you honor a people to kill another people " .
Let God punish them and let our selves forgive them.