Spoilers of Undaunted Courage ahead, if you don't know much about Lewis and Clark.
Being a history buff, I am shocked that I didn't know the first thing about ML's unfortunate death. To be fair, the expedition was hardly covered in my high school and college history classes. What I learned came from a women's studies class, and only because I chose to write an essay on Sacagawea. I still don't remember finding out that Lewis went berserk after returning from the expedition. Speculation ranges from bipolar disorder to advanced syphilis. I doubt very much that Lewis was bipolar. It seems more likely that it was syphilis. That leads me to the question in my last post. I don't think Clark was gay, but I still think Lewis was. He just reminds me of all my gay friends from high school because they hadn't "come out" yet, and spoke just as he did about getting a wife. On the other hand, he may have been straight but just couldn't get anyone to marry him d/t his odd behavior and drunkenness. Who knows. Despite my curiosity, his sexuality is not important. What is important is that such an accomplished and intelligent person came to such a depressing end.