It would suprise me greatly if Zhou is responsible for this.
I do not have access to any first-hand evidence that would implicate Zhou.
I work on behalf of the fund that invested in Bitcoinica. I have no position of authority with Bitcoinica LP.
When it was made known to me that some suspected Zhou, my recommendation was to confront him privately for his explanation.
Thanks for posting here. I hope the puzzle can be solved soon and Bitcoinica's customers can get their claimed amount back in full.