I'm really disappointed to hear that news, but as I hope you can understand, I have to be somewhat skeptical of an anonymous post... there are too many trolls that go around posting things like this just to jack with peoples' heads.
Can you tell me more about when and how you knew him... what he did for a living, was he a big/tall/short/skinny guy? What was his general 'attitude'? That sort of thing.
I would GREATLY appreciate any info you might have.