Dream about accident killing someone is about minor irritations and annoyances. There is some conflict in your self-image. You are too focused on small details. Your dream is your limitations and restrictions. There is some situation or problem that you are unclear about.
Accident killing someone dream is an omen for encouragement and provides hope in dark and murky times. You are feeling disempowered, resentful and frustrated. You are not being cooperative. This dream sadly draws attention to some pent up anger that is on the verge of erupting. You are not utilizing your talents and potential.
If you dreamt about accident killing someone:
You know that there is something that needs to be sorted out, and yet you may not be able to do this with words alone. At some level you also need to take action, the kind that shows that you mean exactly what you say.