University Park, Pennsylvania (CNN) -- The Penn State football coach who alerted head coach Joe Paterno in 2002 that he'd seen a former defensive coordinator sexually assault a boy -- an allegation authorities didn't learn of until years later -- was placed Friday on indefinite leave, the school's interim president said.





With that, Mike McQueary became the latest casualty in a scandal that began with last week's arrest of the man he allegedly witnessed commit the crime. The arrest set off a chain of events, including the ouster of the university's president and of longtime coach Paterno, a move that sparked on-campus riots after it was announced Wednesday.





McQueary in recent months told a grand jury that, when he was a graduate assistant, he saw Jerry Sandusky, now 67, sexually assault a young boy at the campus' football complex. He said he reported the incident to Paterno, who alerted Athletic Director Timothy Curley, Pennsylvania Attorney General Linda Kelly said earlier this week.





Neither Paterno, 84, nor McQueary is criminally charged. Kelly has said that the alleged failure of Curley and Gary Schultz, the university's senior vice president for finance and business, to tell authorities about McQueary's abuse claim "likely allowed a child predator to continue to victimize children for many, many years."





On Friday, acting President Rodney Erickson announced that he and newly named Athletic Director Mark Sherburne had decided to put McQueary on administrative leave. A day earlier, the school athletic department said McQueary would not coach in Saturday's game against Nebraska due to "multiple threats" against him.





"It became clear that Coach McQueary could not function in this role, under these circumstances," Erickson said of the decision.





Sandusky, the football team's defensive coordinator between 1977 and 1999, was taken into custody Saturday for allegedly sexually assaulting children.





Sandusky, who is free on $100,000 bail, disputes the 23-page grand jury summary of graphic testimony describing the alleged crimes between 1994 and 2009, his attorney, Joseph Amendola, has said. On Friday, the lawyer told CNN that a rock had been thrown through a window at Sandusky's home.





The scandal has stirred an uproar and a flurry of action over how Penn State athletic and administrative officials handled the matter.





Erickson said Friday that he'll appoint an ethics officer to report directly to him. He added that he wants to encourage openness and dialogue among the school's 96,000 students so that they do not hesitate to report such allegations.





"Never again should anyone at Penn State -- regardless of their position -- feel scared to do the right thing," he said.





Earlier, he announced the creation of a committee to review sexual abuse allegations at the school -- an inquiry that its chairman, Kenneth Frazier, promised Friday would be "rigorous, objective and impartial." State Education Secretary Ronald Tomalis will serve as vice chairman, it was announced at a board meeting.





Erickson's predecessor was Graham Spanier, who initially had voiced support for Curley and Schultz and later was removed from office by a unanimous vote of the board of trustees.





A senior Navy official told CNN on Friday that, "based on the events this week at Penn State, Navy officials are reviewing" Spanier's membership on the board of advisers at the Naval Postgraduate School in Monterey, California.





The 18 members of the federal advisory committee are nominated to four-year terms. A recommendation to renominate Spanier had been in the works, but will likely be pulled back, the Navy official said.





Meanwhile, students held a candlelight vigil Friday night on the University Park campus -- the same place where, two days earlier, others rioted after the university's trustees fired Paterno. The vigil is one of several efforts aimed at bringing attention to child sexual abuse.





"We are just as horrified, if not more, than a lot of people," said senior Kyle Harris, 21, a vigil organizer. "We want to make an impact. We want to show these kids we care."





Friday's event, which began at 9:30 p.m., included
Over what time was Sandusky accused of carrying out sexual assault? what is the name of person on indefinite leave?
between 1994 and 2009, Mike McQueary
question: Over what time was Sandusky accused of carrying out sexual assault?, answer: between 1994 and 2009, | question: what is the name of person on indefinite leave?, answer: Mike McQueary