Earlier quoted context omitted.
I used to be, for most of the same reasons as you. What ultimately convinced me was realizing that our judicial system can never be 100% perfect, so we would always have a non-zero number of innocent people executed as long as capital punishment is on the table. To me, I think the cost of keeping people incarcerated is worth the cost of accidentally executing innocent citizens. Put a bit more personally: would you su…
Another way to frame it: Assume the justice system is perfect and only guilty people are executed. However, by law for every five or ten guilty executions, a random innocent civilian is also executed. That system is obviously abhorrent and unjust. However, that's how the system works right now . For every N truly guilty people executed, there's a truly innocent person executed. The only difference is we justify it by…
Besides, what is the chance an innocent gets out if he was convicted in the first place?
I believe it's so low that the mistake is not giving a decent out (and avoiding large costs to society) to problematic peoples on the off chance that you might get an innocent released 10 years earlier. If he was truly innocent, his life is ruined already, he would have to live with the consequences for the rest of his life...