STATE COLLEGE - A 19-year-old man has filed a complaint with State Police alleging that he was sexually abused by Jerry Sandusky after the former coach gave him liquor on the Penn State campus in 2004, the accuser's attorney said yesterday.

Charles Schmidt said the client, whom he did not identify, came to his law firm about three weeks ago, after Sandusky was charged with sexually abusing eight boys over a 15-year period.

"He suffered one incident of abuse, to use the legal term - involuntary deviate sexual intercourse - allegedly at the hands of Mr. Sandusky," Schmidt said. "That occurred on the Penn State campus, we believe in the area of the football facilities."

Sandusky's attorney, Joseph Amendola, said he was unfamiliar with the allegations Schmidt was making.

The new claim came the day that an attorney for another young man who has accused Sandusky of sexual abuse said he expected his client and at least five other accusers to testify against Sandusky at a preliminary hearing next week.

The lawyer said he has information that the six young men whose testimony before a grand jury contributed to a report detailing allegations against Sandusky will be called to testify Tuesday. The attorney spoke on condition of anonymity because he said he was trying to ensure his client's identity isn't revealed publicly.

Sandusky is charged with 40 counts of child sex abuse. Prosecutors allege that he met his victims through the Second Mile, a charity he founded in 1977 to help at-risk children. Sandusky, 67, denies being a pedophile and has vowed to fight the charges. In interviews with NBC and the New York Times, he has said he showered and horsed around with boys but never sexually abused them.

Schmidt said his client was 12 years old, dealing with the death of his mother and suffering emotional issues at the time of the alleged campus incident. Schmidt said that his client and Sandusky met through the Second Mile and that his client claims that Sandusky gave him liquor while in the office on campus. The grand jury report did not allege any instances of Sandusky's giving boys alcohol.

Schmidt said his law firm was conducting its own investigation into the client's claims.

"We hope to have it wrapped up within another week. We believe him to be credible," Schmidt said. "Everything that we've been able to unearth since has corroborated what he told us, but we'll continue to do our due diligence."