If you're wondering if the Missouri governor Mike Parson sparingly uses his clemency and pardon power, you'd be mistaken [1]:
> Parson, a former sheriff, has now granted clemency to more than 760 people since 2020 — more than any Missouri governor since the 1940s
including those who waved guns at BLM protestors [2] and the son of the KC Chiefs coach who caused grave bodiy injuries to someone in a DUI.
Available data shows a pretty clear trend [3]:
> An analysis of available demographic data conducted by the Missouri News Network indicates that almost 90% of those who have been granted clemency by the governor are white.
If you're wondering where the US Supreme Court stands on this, consider this quote from then-Justice Antonin Scalia [4]:
> [t]his court has never held that the Constitution forbids the execution of a convicted defendant who has had a full and fair trial but is later able to convince a habeas court that he is ‘actually’ innocent.
Also, consider this racial bias demonstrated in the exoneration for those sentence to death [5]:
> Since 1973, at least 189 people wrongly convicted and sentenced to death have been exonerated. 100 of the death row exonerees are Black.
Lastly, even if you want to ignore the immorality of the death setnence, look at it from the lens of cost [6]. Death penalty cases are substantially more expensive to litigate and death row inmates are substantially more expensive to incarcerate. A life-without-parole would be substantially cheaper.
Also, you can release someone from prison wrongly convicted. You cannot bring them back to life and there are multiple cases of people who were executed and later exonerated. Williams is sadly added to that list.
[1]: https://apnews.com/article/kansas-city-chiefs-britt-reid-com...
[2]: https://www.npr.org/2021/08/03/1024446351/missouris-governor...
[3]: https://www.columbiamissourian.com/news/state_news/governors...
[4]: https://deathpenaltyinfo.org/stories/associate-justice-anton...
[5]: https://www.naacpldf.org/our-thinking/death-row-usa/
[6]: https://www.amnestyusa.org/issues/death-penalty/death-penalt...