What type of schooling n degree would u have to receive to become a medical examiner?

I hav always been intrested in the medical field . My dream career was to go to school to study to become a medical examiner (corner) . I think that doing an autopsy on someone and finding out their cause of death is one of the most intresting type of career. so if any one would be able to give me some information or inform me of some websites I would really appreciate it!