Talk:Kotar Yanagisawa/@comment-1.123.16.46-20150314210846/@comment-5707992-20150315010342

That was ambiguous. If he was referring to himself, then that alone would be enough motive. He most likely is connected to Aguri in some way, but we don't how. And why would Shiro try to trap Korosensei when Korosensei was the test subject? That doesn't make a whole lot of sense. The most probable thing is that something went wrong with the whole experiment and it caused an explosion and turned Korosensei into what he is. Then there's the possiblity that Korosensei was the one who killed Aguri.