PITTSFIELD — The truth remains shrouded of what's become of a onetime star loan executive with Greylock Federal Credit Union.

Michael DiCenzo stood Monday in U.S. District Court in Springfield, his first appearance since he admitted in June 2014 that he defrauded the Pittsfield institution for several years a decade ago and then lied to federal investigators about his wrongdoing.

But DiCenzo's fate as a felon still isn't known. His often-postponed sentencing was delayed again this week, amid new questions about his health and the court's demand to know what happened to millions of dollars waylaid from the credit union.

DiCenzo was the Greylock officer who cultivated loan business with Jeffrey Pierce, a Pittsfield homebuilder who also accepted a plea agreement and was sentenced Aug. 9 to 20 months in a federal prison for defrauding Greylock.

The fraud cost the credit union more than $4 million, according to the cases brought against the men. In addition to mishandling loans to Pierce, from which he received money and use of a house and luxury car, DiCenzo is accused of misappropriating money from two social service organizations, including the Pittsfield chapter of Unico.

At Pierce's sentencing this month, Assistant U.S. Attorney Steven H. Breslow said he expected the DiCenzo case to be resolved soon.

That date came Monday. Though the proceeding got underway, U.S. District Court Judge Mark G. Mastroianni indicated that he wanted more information before imposing sentence. The judge instructed DiCenzo's attorney to provide more information about the former bank executive's medical condition.

According to court records, the judge also seeks "clarification of where the money from the offenses went."

Who will provide that information remains unclear. On Tuesday, attorney Alan J. Black of Northampton withdrew from the case.

In an affidavit filed with the court, Black said that after representing DiCenzo for years, and having moved this month to exit as the former banker's lawyer, he cannot serve any longer in that role, not even for two months until a new sentencing date.

"In sixty [60] days, I will no longer be in the practice of law and will therefore be unable to provide legal counsel," Black told the court.

In recent filings, DiCenzo has succeeded in getting the court to seal records related to his case, claiming that they would reveal "confidential medical and personal information."

Even the government's sentencing memorandum, which presumably lays out the punishment the Justice Department is seeking for DiCenzo, has been barred from public release.

But Breslow said in court this month that the penalty requested for DiCenzo would be more severe. He noted that DiCenzo engaged in fraud that deprived other parties of money, including the Pittsfield-area nonprofits.

"Mr. DiCenzo will be held accountable for that," Breslow said in court Aug. 9.

In June 2014, DiCenzo accepted a plea agreement in which he admitted to receiving money through violations of the credit union's loan policies, engaging in tax fraud and making false statements when federal agencies began to investigate his conduct as a Greylock commercial loan officer from 2004 to 2009.

After DiCenzo's initial plea in June 2014, his sentencing was postponed 12 times from its initial date of Oct. 16, 2014.

Breslow's office declined to explain reasons for the delays. It is likely that his sentencing needed to occur after that of Pierce, so that DiCenzo could be tapped as a witness against his former loan customer.

Several of the delays followed postponements in the Pierce case, after the builder tried, without success, to withdraw aspects of his plea agreement.

Larry Parnass can be reached at lparnass@berkshireeagle.com, at @larryparnass on Twitter and 413-588-8341.