so many questions... is this nina or not? are these 2 woman the same person? if it were only 1 person why shoot the doctor other innocent ppl? why only shoot 1 guy and then left this guy to beat the other 2 guys to death?
Agree with @Cosmak that Grimmers probably from the kinderheim. Makes sense why he knows so much about the results of it's "education," why he's searching for more info about it, and why he's seemingly not affiliated with Johan despite the first two points.