Dreams involving murder and jail can be quite intense and often reflect underlying emotions or situations in your waking life. Here are a few interpretations to consider:

1. Fear of Consequences: The dream may symbolize a fear of facing consequences for your actions or decisions. It could point to feelings of guilt or anxiety about something you've done or are contemplating.
2. Conflict and Aggression: Murders in dreams can also represent repressed anger or conflict. This might suggest that you are dealing with unresolved issues or aggressive feelings towards someone or something in your life.
3. Transformation: In some interpretations, murder can signify the end of something, leading to a transformation or rebirth. This could indicate that you are ready to let go of an old part of yourself or a situation that no longer serves you.
4. Control and Power: The theme of going to jail may reflect feelings of being trapped or losing control in your waking life. It could signify worries about being judged or punished for your choices.
5. Projection of Fears: Sometimes, dreams like this can project fears or anxieties that are not directly related to the act of murder itself, but rather symbolize something else you are struggling with.

To gain more clarity, consider the emotions you felt during the dream and any recent experiences that might relate to these themes. Reflecting on these aspects can help you understand what your subconscious may be trying to communicate.