At Sandusky's trial, Victim 5 testified that he met the coach at a Second Mile camp in 1999 and went to Penn State games with him. He said that Sandusky groped him in the showers during a workout.
Kline said the agreement does not prevent Victim 5, who lives outside Philadelphia, from talking or writing about his experience, although he has no plans to do so.
"We hope that there is closure, but I can tell you on his behalf that he understands there (are) continuing proceedings, because this case has had, and continues to have, many long tentacles," Kline said.
Victim 5 was among eight young men who testified at Sandusky's trial about abuse that included fondling and rape, including incidents on school property.
Sandusky, 69, is serving a 30- to 60-year state prison sentence for child molestation and related offenses.
He spent three decades at Penn State under former head coach Joe Paterno, and met some of his victims through The Second Mile, which he continued to operate after he retired from Penn State in 1999.
A 1998 complaint about Sandusky showering with a boy - one of those who testified against him - was investigated by university police but no charges were filed. A graduate assistant, Mike McQueary, witnessed a different incident in the team shower in 2001 and notified Paterno and other high-ranking school officials, but police were not called.
The response of university leaders, including Paterno, was heavily criticized in a report commissioned by the school last year. Paterno died in January 2012, but criminal charges for an alleged cover-up are pending against three others: former president Graham Spanier, retired vice president Gary Schultz and retired athletic director Tim Curley. All three deny the allegations.
Penn State had fostered an image of a model football program under Paterno, whose statue outside the football stadium was taken down after the scandal broke.
The school has spent nearly $50 million on the Sandusky scandal, not including any payments to the victims and accusers.