I so hate myself for not remembering all of those names. I get that a lot in anime. It usually takes me four to ten times in order to remember each individual character name. It was the same in this episode. As there are lots of different characters playing in this arc, and all of these characters have a certain name, there were lots of times in which I kept wondering who the hell "Takamura-san" (or any other name) could be.
Apart from that, this episode was just as awesome as the previous one. We really get to know all of the different characters (except their names -_-), while it’s still totally unclear who the murderer could be. Sakon still impresses me, and the cliffhanger was once again amazing. I am SO looking forward to the next episode.