The man was one of the greatest writers (the greatest? Seriously, if anyone knows a better or comparable writer of non-fiction I'd like to read him or her) of m

The man was one of the greatest writers (the greatest? Seriously, if anyone knows a better or comparable writer of non-fiction I'd like to read him or her) of modern times but he also suffered from serious mental illness that overwhelmed him for the years. His death was not rational, as much as his writing sometimes make it seem like it.