This young man should have been deep into psychotherapy, and under supervision until the right medications or therapies were designed for him. Unfortunately, like many borderline manic/dep., (if that was his problem), he may not have seen himself as sick at all. He was able to compartmentalize his behavior enough to develop the beginings of a professional life. This too had begun to erode. Did no one in his family or friendship group see the unsustainble craziness?
Um, they might have been nodding their heads in agreement when he was going off on his rants.
The family unit has been eroded.