I agree wtih you that getting a death penalty conviction instead of a sentence to life in prison costs taxpayers way too much money.
It shouldn't cost taxpayers $5 million dollars to get a death penalty conviction every time someone walks into a convenience store and murders the clerk for $50.00 as happened in this case:
Death penalty rarely means case closed - Los Angeles Times
There's something very wrong with our system of justice when taxpayers are victimized to the tune of millions and millions of dollars (whether life in prison or they get the death penalty) every single time someone decides to murder another person in our country.
We are literally allowing the worst criminals in our society to become "gypsy millionaires" at our expense as enormous amounts of money that could be spent on education, our economy, our natural wildlife, etc... are taken by force from a law abiding population to pay for their trials, incarceration, etc...
But even at the present ridiculously high cost of prosecuting murderers (in both death penalty cases and life sentence cases), if they would actually carry out the execution in a timely manner after convicting someone for murder, the cost would be less than incarcerating them.
But here's what's not talked about much: when you aggregate the enormous indirect costs of allowing these murderers to impact the rest of our nation's prison population, our nation's streetgangs and criminal associates, our nation's at-risk population, etc... as "lifers" heading up their race's respective "blood in blood out" prison gangs: the costs for not executing them literally skyrocket.
I argue that our system of justice is in need of reform.
On the one hand we are literally extorting enormous amounts of money to care for the worst of the worst while they negatively affect our entire society after conviction (death penalty conviction or life in prison).
On the other hand, we continue to aggressively punish everyday Americans with ridiculously high fines for even the slightest infractions which often are really just a matter of interpretation of one's liberty.
Where I live, if you pull into a handicap spot for two seconds to turn your car around in a crowded parking lot: the fine is over $1,500.00 by the time all the excises and fees are added up. Here's an article on the sprawling expansion of the prison-judicial complex over the lives of everyday Americans today:
Rough justice in America: Too many laws, too many prisoners | The Economist
We lock up too many people unnecessarily and fine everyday law abiding Americans enormous amounts of money for the slightest infractions on one hand while taxing Americans enormous sums to allow the worst-of-the-worst "blood in blood out" murderers to stay in control of what is supposed to be a system of reform.
Both problems need to be adequately reformed in my opinion.
You all do realize that in the end it actually costs more of your taxpayer dollars for someone to be sentenced to death rather than life in prison. Mostly attributed to a long and drawn out appeals process that can take decades. Just thought people should know this since they are whining about where their money is going.