This one is perplexing to the point of requiring conspiracy theories (your Russian jab).
However, what an awful story. How much duress must a man be under to take such action? I saw the ny post article on this when it first came out and was shocked. For a senior executive to be this far gone and still functioning in role is morbidly impressive.
Peace to his loved ones. This was the awful story of the weekend.
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Sic transit gloria mundi (so shut up and get back to work)