Morning all
Just to reiterate a post from late last night, and to see if I can put it in a better way, more logical:
All the speculation about cause of death, including everything from plastic bags to carbon monoxide poisoning, injection of insulin or whatever, etc is all good conjecture, but I think it boils down to two possible scenarios:
1. The murder was pre-meditated, and planned, in which case ANY method could have been used, no matter how complicated it may appear to be. This could include steps taken to cover up the crime and hide the method used.
2. The murder was a "heat of the moment" thing. In this situation, what we normally see is something that is very quick and very final as the cause of death, eg stabbing, a blow, a gunshot, etc etc - the type of thing from which there is no pulling back. Once done, in a split second, it is done.
With the No 2 scenario, the slower methods, such as suffocation, strangling, head in the bath, etc in MOST cases (not necessarily all) would be aborted as the victim fought, and the realization of what one was doing dawned. It takes a very prolonged "brain snap" to continue with something that takes a significant amount of time, if the victim is fighting back, scratching, kicking, etc.
Hope that stream of thought logic makes some kind of sense....