Prosecutors said yesterday that Meinert's Oct. 7 plea agreement requires him to disclose the names of his victims and provide a time schedule to pay them back.

"To the extent he doesn't reveal the names of victims, then he becomes exposed in the future to prosecution on any victim he doesn't tell us about," Heffernan said.

Jorgens was not available for comment yesterday, and Meinert did not return calls to his Somerville apartment.

Keith O'Neill, a former close friend of Meinert's at GWU, said prosecutors sought his assistance prior to yesterday's scheduled sentencing hearing.

"They said I could write a letter explaining my relationship with Mr. Meinert, and what he did to me, and what emotional and financial effects it had," O'Neill said.

Sigma Chi president Hector G. Bove '00, who is also a Crimson executive, said he was also contacted by the U.S. Attorney's office.