Jerry Sandusky, 67, the former head coach of the Penn State football team, was arrested Saturday on 40 sex offense charges that range from indecent assault, endangering the welfare of a child, involuntary deviate sexual intercourse, and the corruption of minors. He was immediately banned from the Penn State campus.

Sandusky has been accused of using his position at the charity he founded, The Second Mile, to begin relationships with these boys. The charity was founded in 1977, and in September of 2010, Sandusky retired after being removed from all program activities involving children in 2008.

In 2000, Sandusky allegedly showered with another young boy and tried to touch his genitals when the boy stayed at his house for the night. That same year, Tim Calhoun, a janitor at Penn State, reported to his supervisor that he witnessed Sandusky performing oral sex on a young boy.

A second janitor also had reported that he saw Sandusky leaving the shower holding hands with another young boy. None of these incidents are reported to university officials or law enforcement.

In March of 2002, a graduate assistant allegedly told Joe Paterno, the current coach of the football team, that he saw Sandusky in the locker room performing anal sex on a young boy. The next day, Paterno reported the incident to Athletic Director Tim Curley, and later the graduate assistant had a meeting with Curley and the Senior Vice President for Finance and Business, Gary Schultz.

Both Schultz and Curley were arrested with a charge of perjury and a count of failure to report suspected abuse. Both were released Monday on $75,000 bail. Schultz and Curley deny that the graduate assistant had reported the incident to them, and they were both arrested. The day after Sandusky’s arrest, both had resigned from their positions; Schultz retired, while Curley requested administrative leave to prepare for his trial.

Coach Joe Paterno has not been arrested for failing to report the incident, but is expected to have his last season coaching this year, according to two people who had been briefed on conversations among the university’s top officials.

According to the Attorney General’s office, Sandusky had sexual relations with up to eight young boys over the course of 15 years. Authorities are asking that any others please come forward.