1998 -- Penn State police and the Pennsylvania Department of Public Welfare investigate an incident in which the mother of an 11-year-old boy reported that Sandusky had showered with her son and may have had inappropriate conduct with him. In a June 1, 1998, interview with investigators from both agencies, Sandusky admits showering naked with the boy, admitting that it was wrong and promising not to do it again, according to the grand jury report. The district attorney advises investigators that no charges will be filed and the university police chief instructs that the case be closed, according to the testimony included in the grand jury report from the police detective who investigated the incident.
1999 -- Sandusky retires from Penn State after coaching there for 32 years but stays on as a volunteer and retains full access to the campus and football facilities.
2000 -- Tim Calhoun, a janitor at the Lasch Football Building on the Penn State campus, tells his supervisor and another janitor that he saw Sandusky performing oral sex on a young boy, according to the grand jury report. A second janitor reports that he saw Sandusky and a boy leave a shower room and walk out of the building hand in hand. No one reports the alleged incidents to university officials or law enforcement, according to the grand jury report.
2006 or 2007 -- A wrestling coach at the high school where Sandusky is volunteering allegedly surprises Sandusky and a boy "lying on their sides, in physical contact, face to face on a mat" in a cramped weight room. Sandusky jumps to his feet and tells the coach the two were just working on wrestling moves, the coach later recalls in grand jury testimony. As time goes on, Sandusky allegedly begins to spend more time with the boy, taking him to sporting events and giving him gifts, including golf clubs, a computer, cash and clothes. During this period, according to the grand jury report, Sandusky allegedly performs oral sex on the boy more than 20 times, and the boy performs oral sex on him once.
2008 -- The boy breaks off contact with Sandusky. Later, his mother calls the high school to report her son had been sexually assaulted, and the principal bars Sandusky from campus and reports the incident to police. In grand jury testimony, the principal, Steven Turchetta, recalls Sandusky's behavior as suspicious and says Sandusky was often "clingy" and "needy" when a student no longer wanted to spend time with him. The ensuing investigation reveals 118 calls from Sandusky's home and cell phone numbers to the boy's home.
Source:
CNN