Slaughter in a dream is symbolic, not literal, and dream books read it as a hard ending made for the sake of something else — giving up one thing so another can be sustained.
Where in your waking life have you met something like this lately?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.