(CNN) In a letter to the Senate Judiciary Committee, another former classmate of Brett Kavanaugh's denies attending a party like the one described in the allegation made by Christine Blasey Ford, who has accused the Supreme Court nominee of sexually assaulting her three decades ago when they were teenagers.

Patrick J. Smyth attended Georgetown Prep -- an all-boys school in North Bethesda, Maryland -- alongside Kavanaugh. Both men graduated in 1983. Smyth signed a letter this summer, before the allegations against Kavanaugh were made public, testifying that Kavanaugh "is singularly qualified to be an Associate Justice on the U.S. Supreme Court," along with dozen other of the school's alumni.

Eric Bruce, who is representing Smyth, authored a letter to Senate Judiciary Chairman Chuck Grassley of Iowa and Sen. Dianne Feinstein of California, the top Democrat on the committee. CNN has obtained a copy of the letter, which includes a quote from Smyth denying seeing any "improper conduct" from Kavanaugh.

"I understand that I have been identified by Dr. Christine Blasey Ford as the person she remembers as 'PJ' who supposedly was present at the party she described in her statements to the Washington Post," Smyth says in his statement to the Senate Judiciary Committee. "I am issuing this statement today to make it clear to all involved that I have no knowledge of the party in question; nor do I have any knowledge of the allegations of improper conduct she has leveled against Brett Kavanaugh."

"Personally speaking, I have known Brett Kavanaugh since high school and I know him to be a person of great integrity, a great friend, and I have never witnessed any improper conduct by Brett Kavanaugh towards women. To safeguard my own privacy and anonymity, I respectfully request that the Committee accept this statement in response to any inquiry the Committee may have."

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