This story just keeps getting weirder...
He was found in a sitting position, in a chair. Hands tied behind his back, at the wrists. Rope tied around his neck and genitals.
Auto-erotic asphyxiation is one possibility, but how'd he get his tied hands behind his back, and why? Something doesn't quite add up here...
Reminds me of a Michael Connelly novel that dealt with a case that involved just that strange crap - auto-erotic asphyxiation. Its bizarre, but apparently a real thing.