//Total Hijack//
I wrote a horror short story a few years back, a 1st person confession from a guy who was a member of an underground group of off the book executioners, sent clandestinely by the government to prisons to perform secret executions of prisoners.
The twist was he would be taken to the prisoner's cell while they were asleep and perform a lethal injection on them. The whole point was the idea that being executed wasn't cruel, seeing it coming was. So it was decided it was better of prisoners just went to bed one night and never work up. In the story most "natural cause" deaths of prisoners are death row or in prison for extreme crimes are really secret executions carried out by this secret organization. The public "They know it is coming" executions are only used to keep the ruse up and generally saved for really extreme cases that it is felt are worth the extra pain and suffering of seeing their death coming.
Cool plot! ...And it's a great idea, psychologically speaking. The most merciful death is one that is quick, and, importantly, that comes on unawares. What sweeter death than simply going to sleep, completely unaware of what's to come, and then never waking up?
(Had three deaths in the (extended) family in the last month. Two of them were, in a way, the diametric opposites of each other. Both uncles of mine, both fairly young, relatively speaking. In one case, protracted illness, over two years, towards the end guy reduced to near-comatose, and then one day gone. And in the other case, not actually passed-in-sleep, but still pretty cool: Sudden heart failure, and then, boom, gone within 5 minutes or so, less maybe. ...Of course, it was horrible for my aunt and their young daughter, my cousin, completely horrible, I'm not saying his dying was cool, but you know what I mean: I'd any day choose a sudden quick death, over a long-protracted one, even if that means a somewhat earlier death.)
eta: So what was the horror element of it? The reveal at the end, that this is what first-person-protagonist does when wears his suit and drives out in his car in the morning? Or something grisly that happens when something goes wrong, or maybe something like the Reacher plot, someone trying to make the criminals pay by dying in pain, or something like that? (Just curious. Either way, cool plot.)