In October 2003, the decomposing body of a 55-65 year old woman was found near a popular entrance to Grand Canyon National Park. (Estimated birth year: 1938-1948* edited) She had died of blunt force trauma to the head between a few days and two weeks earlier, placing her death in Early to mid October of 2003. She had extensive dental work worth thousands of dollars, and forensic tests indicate that she spent her early years in Austria before living in France later in life. She clearly cared about the appearance of her nails and hair, and the report mentions that "her nails were beautifully manicured".
There were indications that she had eaten just hours before her death. I didn't see any information on what kind of food it was, so I don't know if she had eaten at home or at a restaurant on the drive into the area. If she had moved to the area, she would have to live within a couple hours of Devil Dog Road in Williams, AZ. That opens up a lot of Arizona towns that are popular retirement destinations. It's also highly likely that she was a tourist who didn't live in the area. If she was a tourist, was she still living in France, or had she retired to the United States, or another country?