My friend and I have been analyzing the episodes. Kizukura would be in just about the right spot to have thrown the gas bomb. I personally am suspicious of Izayoi and Ando. Also, it was basically confirmed that Munakata's bracelet condition is/was "Cannot open doors". My friend and I also suspect that Gozu's is/was "Must make sure Makoto Naegi does not die". Now, I'm saying "is/was" because I suspect that the conditions will change each cycle, getting harder and harder to avoid. Because despair.
:O!!!! That’d be a pretty interesting twist if the conditions changed for each cycle. I really hope it’s not Kizakura because he shot up my list of faves when he was showed up in the despair arc. I hope we see more of him!
I kinda hope Great Gozu is protecting him out of the goodness of his heart but you’re right, he is pretty focused on Naegi above all else. Did he react when the animator got punched? I might have to rewatch that part.