So no one could get to this guy? No, Tsuzuki refused to believe that. Where there's a will, there's a way, right? And there was most certainly a will to stop this before anything worse happened. To them or the other 'patients'...

"Maybe we can get to him when the nurses aren't around to drug us?" Kind of like how they had singled out Maria's mother, way back when. People were always more easy to deal with when alone... The tricky part was getting them that way.