Who kills president snow?

President Snow is killed by Katniss Everdeen in the epilogue of "Mockingjay," the final book of Suzanne Collins' "The Hunger Games" series. However, it is important to note that she does not directly shoot him; he is ultimately poisoned by the very berries he used as a weapon against her in the past. In a symbolic act, Katniss chooses to execute him, but in the end, the act of murder is completed by his own actions.