Paula escapes her room and a fenced in guard dog barks at her. It cuts away and when we return it is implied Paula strangled him to death as her hands are clenched and we pan to a still dog later. No visible wounds. There is another dog fenced in that lives.
Beside Paula who starts off dead Mr. Stendahl works in reviving dead animals. His appearance starts with him attempting to revive a dead rabbit, eventually succeeding. He uses this technique on Paula