Who broke Global Trader?

I was surprised at just how much press coverage there was last week when it came out that Global Trader Europe had effectively been holed below the waterline because of one client’s inability to meet a margin call. However, having been told from an exceptionally good source that the client was a character well known both to the market and the UK’s Financial Services Authority, I think I now understand why there was so much interest. So far, I haven’t seen the name published other than on a few bulletin boards, which have been swift to remove it.