Do you have anyone to talk with? I think all these disturbing dreams along with your dad's death's anniversary coming up, it means you could probably use someone to talk to in real life, not just on the Internet. Someone you can trust, someone you can bear your soul to, and tell them all that is troubling you, someone who is a good listener.

I think you call 911 in this dream because you need help. The dream again is about death because death is very much on your mind. This time the death in your dream happens to strangers: it's kind of like the death in your dreams is expanding - first dreams of the death of your dad, then your mom, and now two strangers. Strangers in dreams often represents parts of our own mind. I think part of you died when your dad died, and part of you feels like dying because of all that has happened and is happening to your family. But you need to find a way to live, to live despite what happened to your parents, and as I suggested before find a way to focus on life not death.

I am not sure what the man represents. He could represent evil and injustice and death, for example. Or could be something else. Part of the dream is saying don't get involved if it is none of your business, but your dream self rightfully decides to not let the evil win. Hey, you are on the side of good, and you want to actively do something to prevent evil. Those are very good signs. It confirms that you care and that you want to do something about stuff you perceive as wrong, which is good.

Wishing you peace.