Argument for death penalty

I’m a very politically liberal person but I can’t argue against putting this kid to death. I’m not a fan of the history of the death penalty, many injustices have occurred. In cases like this, when there is zero doubt, shoot this mother f......er. Don’t drag it out for years and years in court. I’m not going to stand in a picket line in support of the death penalty but I would not have any issue with this monster being put down.