This way, to me, would be more punishable than death, and cheaper for the tax payers as well. I know the prisons are overrun as it is, but it costs tons of money to execute people and it would actually be cheaper to keep them alive.
I've never seen a single statistic that claims life imprisonment is cheaper than execution. The standard of living for criminals in the system is anything but punishing. Many prisoners enjoy benefits that aren't even available to many law-abiding citizens. That IMHO is outrageous.
I'll freely admit that mistakes do occur. The question is how often. I think it is ridiculous to suggest that we should lower our collective standards to address the occasional "what if". There are so many checks and balances in place these days that the risk of executing an innocent is minimal at best. Texas has already seen results from streamlining the death penalty process. Executions are now taking place in just years as opposed to decades. Is it working? Death penalty eligible crimes are down in just about every single category.
Do mistakes happen? Sure. Does that mean that no offender should be punished and held accountable just in case a mistake might happen? Absolutely not.