It's like sometimes in life that's how it is, we bump into someone n then they disappear...... one tip as a hobby investigator, if you know his respective trade forum, for example, eurhope hardcore, then you can ask there, or ask mod if it's okay if you ask first. He may be actively trading (or non-actively but someone may know him) ..... you get the idea ;) See, i've done quite a bit of research on people in my life, i know how to figure stuff out ... at least to some degree. I cannot claim to be a professional investigator. But it would be cool.