Basically - life without parole. A lot of death penalty proponents stipulate that convicted criminals will be out on the streets in seven to twenty years, potentially unleashing them back on society. nobody wants a vengeful serial killer or rapist back on the streets and free to track down the people who testified against him - that's a scenario straight out of a nightmare! but in reality,  most people sentenced to life without parole for violent crimes are not released at all, and the ones who are usually released aftet at least 25-30 years in prison, by which point most of them are old men and women anyway. As mentioned above, life without parole also costs a lot less and allows for mistakes to be corrected. Overall, ee feel like the death penalty has a lot of negative sides and no positive ones, and while life without parole is not a perfect solution, it certainly beats the Alternative.