You are obviously a very caring person, that really comes across.
We are not here to judge, but to consider any and all possibilities of why this man has disappeared, in the hopes of coming up with some little nugget that can help bring him home. It seems personal, it is not. The dissection is necessary to better estimate predictive behavior that hopefully leads to recovery.
Many people on these threads have lived through tragedy, and give back by attempting to help with research and ideas. The dissection and endless ideation does result, in many cases, to contributing to recoveries. Let’s hope this is one of them. Thank you for your caring; you will find lots of kindred souls on these threads.