One aspect that I will touch on tonight that I have not heard anyone discuss is that there are three distinct issues to this pilot’s behavior.
1. Physical: Eye problems, cancer, etc.
2. Mental: Depression, anxiety disorder, etc.
3 Psychological: The pilot may have the first two issue that influenced his thinking and action, or the first two had nothing to do with his decision but rather it was a thinking process or philosophy similar to a terrorist who is neither physically sick or suffering from a mental disorder but rather has a different philosophical view which forms the basis for precipitous actions and behaviors.