Okay, you know how Kokichi Oma didn't do anything drastic until after the third chapter? Well what if something happened in chapter three that did this. But what could happen to cause this? If you look back to the investigation, specifically near the end, you would remember that Oma pretended to be dead after tripping very hard. What if that caused him to do something drastic? There are several explanations for this. One, the concussion affected him mentally. This is a good explanation. But have another one in mind. The killing game v3 takes place in is the 53rd season of danganronpa. So other people have already died as a result. This may be a stretch, but what if, a victim of a previous killing game possessed Kokichi? You may say, ghost don't exist in danganronpa, but look at Korekiyo execution, and you see very well that ghost exist. Very coincidental that the same chapter Kokichi might have gotten possessed in has lots to do with ghosts. But you're probably thinking, "But it was never shown that ghosts can possess people!" and to that I say to take a look at ultra despair girls. In the game Komaru Naegi, the character you play as, gets possessed. I in no way think this is cannon, but this is a fun thought I wanted to share with you guys. So remember, this is just a theory. A danganronpa theory! Thanks for listening.