In a manga, the characters are trying to find out the culprit of some homicides. One of the character is basically saying that if they keep thinking in a logical way, they will never find out who the culprit is. Then he says this:
だって この物語には… 最初からまともな理由なんてなかったんだから。
Could 理由 be interpreted as "logic" in the sentence above (and in general)? Translating it as "reason" or "motive" doesn't fit the context in my opinion, because they knew since the beginning that the culprit was a 殺人鬼 and there wasn't a motive for the homicides. My translation attempt:
It's because this story has never followed any logic.
Later on they will discover that they had made the wrong assumption that another character was killed, while he actually faked his death instead. Here you can see the two pages where it is taken from for more context. Thank you for your help!