If you suspect foul play, contact law enforcement.
In no way am I offering you legal advice, and in no way has my comment created an attorney-client relationship. You are not to rely upon my note above in any way, but insted need to sit down with counsel and share all relevant facts before receiving fully-informed legal advice. If you want to be completely sure of your rights, you must sit down with an experienced criminal defense attorney to be fully aware of your rights.
I am unsure if this is some kind of question on a bar examination or some type of recitation of a novel or a TV show due to you talking in the third person and using language like "one", which are no longer used in legal language. When you reference Cronner's rule of Death are you referencing the "coroner's" determination of the "cause" of death. It appears that you suspect foul play for some type of death due to a term life insurance policy to his girlfriend. If you are not getting anywhere with the sheriffs department, it would be best to sit down with your local DA or DA's investigator directly. They are the chief law enforcement officer in your rural district.
The information provided in this answer does not create an attorney-client relationship. If you are interested in his legal services, feel free to call Chris at (303) 409-7635 at his law office in the Denver Tech Center. All initial consultations are free of charge.
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