I killed a random person and then felt really guilty when they went missing
Dreams about killing someone can be very distressing, but it's important to remember that dreams are often symbolic and do not necessarily reflect your true desires or intentions. Often it can represent your own inner conflict or aggression.
In this dream, the guilt you feel after killing the random person may suggest that you have recently made a mistake or hurt someone in your waking life. You may be feeling regretful or remorseful about what you have done or said to someone else.
Alternatively, dreaming about killing someone can also represent the desire to control or dominate others. It is possible that you may be feeling frustrated or powerless in some aspect of your waking life, and this dream symbolizes your desire to take control.
Overall, this dream signifies that you may be grappling with feelings of guilt, regret, remorse, or the desire for power in your waking life. Consider identifying the source of these feelings and finding ways to resolve them.