The letter also suggested Prater later gave Moon favorable treatment after Moon was charged in 2008 with being in actual physical control of a car while intoxicated and other offenses.
Those accusations eventually made their way to the attorney general's office, which guides the grand jury. Offered in support of the accusations was the typed and notarized affidavit signed by Starr.
The affidavit states the party was held “to celebrate and raise money for Mr. David Prater.”
“The bill was paid by Lewis B. Moon, a frequent customer of my restaurants, at Mr. Prater's request. Mr. Moon paid this bill completely with his credit card on the date of the event,” the affidavit states.
Starr last year declined to comment to The Oklahoman. However, he did talk last year to Andrew Speno, then the anchor for an Oklahoma City television station.
“He said ... Reynolds had shoved this paper in front of him,” Speno recalled Friday. “Starr said he signed it just because he didn't want to offend one of his best customers ... Reynolds. ... He said there was no notary there ... He said, ‘He just stuck it in front of me and had me sign it.'
Speno also said, “According to Starr, what was in that ... wasn't true. ... He said he signed it because Reynolds asked him to and Reynolds was one of his best customers.”
Starr is believed to be cooperating in the grand jury inquiry.
Former Attorney General Larry Derryberry confirmed last week he is representing Starr.
“I have confidence in his integrity,” Derryberry said.
Grand jurors last took testimony about the issue Wednesday. Their sessions are not open to the public. Grand jurors meet again May 15.
Among those testifying Wednesday was Moon. Afterward, his attorney, John Coyle, told The Oklahoman, “L.B. Moon did not pay for that party.”
Coyle stressed he could not reveal what Moon told the grand jury. He said, though, that the accusation that Moon did pay for the party is not fair because Moon “just went.”
Also testifying Wednesday was Jennifer Chrisman, the notary on Starr's affidavit, and Marilyn Hughes, the executive director of the Oklahoma Ethics Commission.
Hughes declined to comment Friday.
The main assistant attorney general who advises the grand jury also declined to comment Friday.
Sources have said Reynolds would have known the restaurant owner affidavit could not be true because he was one of the attorneys who helped pay for the party.
Reynolds never testified before the grand jury because of his poor health.