The theories on Rangiku Matsumoto's death would be lovely to hear, Rukia Kuchiki, because I am completely dumbfounded as to what could have occurred.

As for the number of night kills each night, I can only imagine the Poisoner targeted someone Night 1 and so they died Night 2. I only arrived Day 4, so I was unable to kill Night 3. I apologize if my numbering is off.