Poussey (Samira Wiley) is sweet, funny, and leaves the series entirely too soon. In the second-to-last episode of season four, a peaceful protest in the cafeteria turns into chaos, and all COs are on deck to manage the situation. When Crazy Eyes starts having a psychotic break, Poussey tries to help, but CO Baxter Bayley throws her to the ground. At that point, Crazy Eyes started attacking him. As CO Bayley is fighting her off, he is also holding the back of Poussey's neck and has his knee on her back. She gasps for air and says that she can't breathe. She dies very quickly right there on the cafeteria floor. Her death causes the the riot that takes place over the entire fifth season.
