As representative of MtGox, I do confirm the following facts:

• Upon hack of Bitcoinica's account on our platform, a large number of redeemable codes have been issued. Seeing a large volume of codes emitted by Bitcoinica didn't alert us at first as we assumed those were funds returned to Bitcoinica customers, however we were made aware it was not the case upon posting on this forum by Genjix about the account hack. We noticed that most of those codes were sent to AurumXchange.
• Codes were all generated from IP 184.22.31.180 (184-22-31-180.static.hostnoc.net)
  
• During the investigation, AurumXchange asked us if we knew anything about email address stevejobs807@gmail.com which was used by the hacker according to AurumXchange. We found an account under this email which had some activity back in 2011, with access from both an IP at Microsoft Singapore then an IP at Amazon EC2 and which initial funds are deposited from an account known to belong to Zhou Tong.

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While we have no definitive proof at this time, there is a definitive need for a proper investigation of what happened there. We have got no reply at this time from Bitcoinica LP and its representatives/owners regarding this matter despite many requests.