(CNN) -- Pennsylvania's attorney general would not rule out Monday the possibility of additional charges or the discovery of more victims in the case of a former Penn State university football coach accused of sexually abusing boys between 1994 and 2009.
Speaking at a news conference, Attorney General Linda Kelly urged anyone with information about the case to come forward, particularly the unidentified boy whom a graduate assistant testified seeing having sex with former Penn State defensive coordinator Jerry Sandusky in 2002.
She said the alleged failure of two top Penn State university officials to report abuse claims likely perpetuated a nightmarish loop of abuse.
"Their inaction likely allowed a child predator to continue to victimize children for many, many years," Kelly said of Penn State Athletic Director Timothy Curley, 57, and Gary Schultz, 62, the university's senior vice president for finance and business.
The men, each charged with one count of perjury and one count of failure to report suspected abuse, were released Monday on $75,000 bail each after an arraignment hearing in a small courtroom packed with reporters. They appeared flanked by their attorneys, each of whom said the men were innocent of the charges and they would fight to clear their names.
Sandusky is accused of abusing eight boys and is charged with involuntary deviate sexual intercourse and numerous other charges. He was released Saturday on $100,000 bail. His attorney, Joseph Amendola, did not return a message from CNN seeking comment Monday. Amendola earlier told CNN affiliate WJAC that Sandusky has known about the allegations for three years.