Here is a Philidelphia pediatrician that wrote a book about Clipperton Island. Kind of makes me feel sick. Dr. Karl Berger

https://www.tribdem.com/news/local_news/local-pediatrician-writes-his-first-full-length-thriller/article_16bd7273-ca26-501f-83b6-220d6be75ed2.html

https://www.healthgrades.com/physician/dr-karl-berger-xf4x6

Here is an article about the guy who supposedly shot the pigs on Clipperton Island.

https://en.wikipedia.org/wiki/Kenneth_E._Stager