I think I've come to some understanding about the dream and appreciate the work of those who contributed to this thread
http://cassiopaea.org/forum/index.php?action=search2 about the negative introject because I couldn't really grasp the concept of 'predators mind'.
While I was struggling to understand I come to the conclusion that the dream centred around the time when my mother left my biological father for another man (or should I say boy as he was only 17 at the time) who was well on the way to becoming alcoholic. During this time, my biological father was trying to maintain some visitation but each collection/drop off ended up in an argument and apparently I ended up very upset. My biological father couldn't bear that so he called a halt to all visitations. I also ended up being hospitalised for either kidney or epilepsy issues (mum isn't clear on that or doesn't remember). While I was hospitalised my mother left town with her new man and my grandparents took over care of me. I remember a scene where when she came back, my grandfather hunted her off the property and soon after allowed her only supervised visits. When she was allowed to take me back, there was a new 'father' installed in the house. I don't think I remember knowing he was different, but I think I remember feeling he was different. I was between the age of 18 months to 2yo but didn't really know in a conscious sense that my step father was not my biological father until I found my birth certificate when I was around 16yo.
There are three characters in the dream I believe they are all me through my relationship with all the characters in the above scenario.
The murderer I believe is the predators mind/negative introject. This is me expressed through my relationship with my mother.
The authority figures are me expressed through my relationship with my grandparents.
The murdered victim is me expressed through my biological dad.
The shutting down of emotions is tied to both the loss of my biological dad and the need to suppress emotions so that my mum could cope. And after I returned to living with mum and my step father, her need to present the picture of the perfect family to my grandfather and attempting to hide the true nature of the situation (alcohlism and violence from my step father, gambling, fraudulent cheque writing from my mother).
So at this point it seems that I need to over come the predators mind/negative introject and reunite me as authority figure with me as murder victim...continue to learn in general but also specifically practicing healthy emotional expression.