Hagakure was the one to find the body.

  Yayorozu was the one who heard the screech, Iida and Izuku right behind her to investigate.

  They found the girl in the doorway, slumped on her knees, a greasy, lumpy liquid splattered on the ground, mixing with a darker, smoother liquid.

 
 
  Naomasa had a dumbbell through his head. He had looked up, possibly upon hearing something, and the heavy weight had caved his face in. Unluckily for the detective, the force hadn't snapped his neck, meaning his lay there suffering in agony, waiting to die. His blood had pooled, and his body was only disturbed when Hagakure found him, and promptly threw up at the sight.

  A note was found in his hand, crumpled and soaked in blood. The blood had completely obscured the writing, so nobody would ever know what was written there.

  Tooru was sat in the common room, the rest of the girls trying to comfort her.

Izuku had tried to say something to the poor girl, but was unable to get the words out.

  Iida was shaken, his friends were being killed or traumatized left and right, and there was nothing he could do about it.

  Sero kept to himself, still in shock from Kaminari's demise.

  Bakugo stayed in his room. No shouting, firecrackers or any kind of noise came from there.

  Momo was beginning to lose it, her normally calm gaze darting between each of her classmate's faces, suspicious and afraid of all of them.

  Koda was weeping silently to himself, pleading for it all to stop.

  Outwardly, Todoroki looked almost normal, but his messy, disheveled hair, crumpled shirt and fearful, darting eyes gave away his true emotions.

  *Look at them all, they're so scared of eachother!! Should I say something? Probably not. It's fun seeing it even get to Todoroki!*