Grocery store, killer and a dead girl?

Date: 8/29/2016

In my dream, I went to the grocery store where I use to work at and talked to my coworkers. I bought junk food and a friend *C* ate it on my way out. Suddenly, a big man used a big rock to hit my head over and over again. I was trying to find something on the ground to hit him with. Then someone coached me on what to do and ended up killing him with a heavy blow on the head. I also had another dream but all I could remember was talking to this 11 year old girl and she was saying that she died when she was 7 years old.