Oh hun, how horrific. Must have been a relief when you realised it was a dream though. I've always had really intense dreams too so I'll look forward to/prepare myself for them coming back. I've only had 2 drinking related dreams so far, one where I stole some booze from a supermarket and another where I went to a music festival with two of my oldest/biggest drinking buddies plus the only friend of mine who ever confronted me about my drinking. I can't remember what happened in the end of either of them.
Regarding the dead people...I had a similar type dream once which terrified me and a friend who was into dream analysis told me it was actually a good sign, and that death in dreams meant a new beginning