Victim 1 and the other young men will confront Mr. Sandusky from the witness stand for the first time since their allegations were made public in a graphic grand-jury presentment last fall.

WSJ: Jerry Sandusky Trial Will Hinge on Portrayal of Accusers

According to a grand-jury presentment released by the attorney general's office, one of the alleged new victims, known as Victim 9, met Mr. Sandusky in 2004 while attending a summer camp organized by the Second Mile.

WSJ: Sandusky Jailed After New Abuse Charges

The Attorney General's office has not yet identified this victim, known as "Victim 2, " but Mr. Sandusky's lawyer, Joseph Amendola, has said that victim has been found and doesn't support the testimony in the grand jury presentment.

WSJ: Former Penn State Officials Curley, Schultz Focus On McQueary Credibility

Mr. McQueary testified that he witnessed Jerry Sandusky sexually assaulting a boy in the shower of a Penn State locker room on March 1, 2002, according to a grand jury presentment released by the state attorney general's office.

WSJ: Former Penn State Officials Curley, Schultz Focus On McQueary Credibility