The National Hockey League (NHL) has been subpoenaed by the receiver in the Trevor Cook fraud case to get details about a bid that Cook's associate-Jason Beckman-made to buy into the Minnesota Wild.

According to R.J. Zayed, the court-appointed receiver charged with collecting assets from Cook's $190 million fraud scheme, the NHL documents may contain information about Beckman's assets, which are of interest to the receivership.

Zayed said that Cook and his associates sent $38 million to companies owned by James Pieron, including a software company called JDFX. Only $13 million came back to Zayed, leaving about $25 million unaccounted for. Zayed said that about $9 million of that appears to be trading losses, meaning $15 million is still missing.

The NHL documents could provide valuable information in tracking down the missing money. Specifically, Zayed said that the documents have information about what Beckman claimed as property and what he claimed to have ownership interest in-including JDFX, which Pieron claims is bankrupt.

Zayed also said he is looking to find out if the receivership has an ownership interest in JDFX or Pieron's other companies-including Komplique, a swimsuit company.

Jason Beckman was an associate of Cook, who was sentenced to 25 years in prison. Cook pleaded guilty in April to one count of mail fraud and one count of tax evasion.

According to the plea agreement, Cook-with the help of others-raised at least $190 million from 1,000 or more investors who thought they were investing in a low-risk, high-return foreign-currency trading program. Instead, Cook used their money to make payments to other investors and give funds to Switzerland-based brokerage firm Crown Forex, SA, in an effort to deceive Swiss banking regulators.