( CNN ) -- A string of sexual child abuse charges against a former Penn State assistant football coach includes an alleged shower incident that two current university officials are accused of covering up , prosecutors said Saturday . Jerry Sandusky , 67 , who served 23 years as defensive coordinator for the Nittany Lions , allegedly engaged in fondling , oral sex and anal sex with young boys over a period of more than 10 years , according to an investigative grand jury 's summary of testimony . `` This is a case about a sexual predator who used his position within the university and community to repeatedly prey on young boys , '' Pennsylvania Attorney General Linda Kelly said Saturday in announcing the charges . In some cases , Sandusky , who maintains his innocence , promised the boys gifts or invited them to football games and sleepovers , according to the grand jury . Some of the incidents allegedly occurred in Penn State athletic facilities . Sandusky , who retired from coaching in 1999 , was founder of the Second Mile , a charitable organization that began as a group foster home `` dedicated to helping troubled boys , '' the grand jury states . `` Through the Second Mile , Sandusky had access to hundreds of boys , many of whom were vulnerable due to their social situations , '' it added . Also named in the grand jury report are Penn State Athletic Director Timothy Curley , 57 , and Gary Schultz , 62 , the university 's senior vice president for finance and business , who face charges of one count of perjury each . Curley and Schultz `` allegedly failed to report the sexual assault of a young boy after the information was brought to their attention , and later made false statements to a grand jury that was investigating a series of assaults on young boys , '' Kelly said . The two university officials are expected to surrender Monday . Sandusky , who was arrested and released Saturday on $ 100,000 unsecured bail , faces seven counts of involuntary deviate sexual intercourse , and numerous other charges , including aggravated indecent assault and endangering the welfare of a child . A preliminary hearing is scheduled for Wednesday , but defense attorney Joseph Amendola told CNN Johnstown affiliate WJAC he expects it be postponed in order for attorneys to have enough time to bring in witnesses . Sandusky has known about the allegations for three years , the lawyer said . `` Jerry feels like because of his background and reputation it took a long time to reach this conclusion and he 's been ready for it , '' Amendola told WJAC . The grand jury investigation was initiated by the claims of one boy who alleged that Sandusky had `` indecently assaulted '' him and engaged in sex acts while the boy was a guest at his home , according to the attorney general . The victim met Sandusky through the former coach 's Second Mile charity , Kelly said . Sandusky allegedly used expensive gifts such as trips to professional and college games , golf clubs , a computer and money , Kelly said . The relationship , which began in 2005 and lasted into 2008 , included overnight stays at Sandusky 's home , where touching led to sexual acts , according to Kelly and grand jury testimony . `` One of the most compelling and disturbing pieces of testimony in this investigation came from an eyewitness to a late-night sexual assault that allegedly occurred in March of 2002 , in the locker room of the Lasch Football Building on the University Park Campus , '' Kelly said . `` Hearing what sounded like sexual activity in the showers of a building that was supposed to be empty , a graduate assistant reportedly observed Sandusky sexually assaulting a naked boy who appeared to be about 10 years old . '' The assistant reported the incident to head football coach Joe Paterno , who in turn alerted athletic director Curley , Kelly said . Instead of reporting the incident to authorities , Curley and Schultz banned Sandusky from having children from Second Mile visit the football building , Kelly said . Specifically , the grand jury found that Curley committed perjury in repeatedly denying that he had ever been told that Sandusky had engaged in sexual misconduct with a child , Kelly said . `` Assertions by Schultz that the allegations concerning Sandusky were 'not that serious ' and that he and Curley 'had no indication that a crime had occurred ' were in direct contradiction to other testimony and constituted perjury , '' Kelly wrote . In all , the grand jury identified eight boys , ranging in age from about 8 to 14 , who were the targets of similar sexual advances or assaults by Sandusky from 1994-2009 . All of the victims first encountered Sandusky through Second Mile activities , Kelly said . Authorities said they are continuing to search for additional victims and that the case remains active . Penn State President Graham Spanier said in a statement that the allegations against the former coach are `` troubling , '' and that the investigation is appropriate . With regards to Curley and Schultz , Spanier said they have his `` unconditional support . '' `` I have complete confidence in how they have handled the allegations about a former University employee , '' he said , adding that the charges are `` groundless . '' CNN 's Stephanie Gallman contributed to this report .
Joseph Amendola , out on bail , maintains he is innocent . The alleged assaults on Two boys occurred 1999 . Two other university officials are charged with perjury in alleged cover-up . Sandusky was an assistant coach at CNN until between 1994 and 2009 .