Even through this garbage MTL, I was able to not be confused. I don't know what the fuck the rest of you are doing. The end obviously shows Fujio is in jail for the one murder that he committed (justifiably but unfortunately Japan doesn't have jury nullification). The thrice-and-fourth-attempted serial killer was obviously arrested after stabbing a guy in front of a bunch of cops. His fate was not shown because it is obvious. (He is either in jail awaiting trial, in prison for life, or executed.) Also, they do not look similar! And assuming it wasn't a mistranslation, Fujio's “death” was merely metaphorical. Did I cover everything?
As for what I thought about the series, it definitely would've been more intresting if his murder wasn't completely justifiable, but I don't hate that it was. No followup/closure with the dark-haired love intrest is 💩 tho. Also in the middle we really started following the cops a bunch and then we jumped back to not following them at all. Very strange. Could've been expanded more (or less). Despite being fine with not seeing his end, not explaining why the serial killer was serial-killing is a huge hole. That was the biggest background piece of the story. Maybe the explanation was lost in dogshit translation tho. I certainly care more about these characters than most of the Fool Night ones tho. Mmmmmm with a better good translation, worth reading, sure. It's not long.