To help you with your question....there is no such thing as a Nurse Coroner.
A "Coroner" is an elected position in numerous states where they do not have a Medical Examiner system.
The difference is that a ME is selected by the governor of the state that has a ME system, and must be a forensic pathologist.
A "Coroner" is elected and in most states that have a Coroner system..if no MD is running, Joe Blow with no degree or credentials can run. In Mississippi they actually have a mail man that is a coroner. Of course he can not perform an autopsy or sign a death certificate, but can get any MD to sign it as they need a cause and manner of death.
I believe you are looking for a Nurse postion in the forensic death investigation part...the jobs are few and you have to be at the right place at the right time.
I am a Forensic Investigator (Not a RN) for the past 16 years and the last time we had an opening we had over 300 applicants and we only looked at 3 that had an anthropology background. A RN or LPN license is not required to be a forensic investigator. Many of the FI's that I know are not in the "Nursing field".
There are several good schools to attend, but there are no jobs that are readily available.
Some Sheriff's Offices in California have a duel role Sheriff/Coroner and the pay is not too bad, but add the cost to live in L.A. county and it is not worth it.
I will be happy to answer any questions that you have and join us on the chat room, my nickname is caj and I am the owner of the net #allnurses is on.
Look for me on America's Most Wanted on April 20th on your Fox Network on a case that I solved.