Concord — St. Paul’s School said it could not have prevented the sexual assault of a 15-year-old freshman by senior Owen Labrie, of Tunbridge, in May 2014.

Only the girl and Labrie know what happened between them that night, and both testified to different versions of events that transpired in a secluded room on the St. Paul’s campus, the school said in a statement on Monday. The statement is part of a 64-page response to a civil lawsuit, which the girl’s family submitted against the school in U.S. District Court in June.

Labrie was convicted on three counts of statutory rape and one count of endangering the welfare of a child, all misdemeanors. The jury also found him guilty of prohibited use of a computer, a felony that requires lifelong registration as a sex offender.

Labrie was jailed for two months. He was released in May and is appealing his convictions.

After his release, the family of the former student filed the federal lawsuit demanding a jury trial in the civil case. They accuse the school of negligence, breach of fiduciary duty and infliction of emotional distress, among other things. Damages exceed $75,000, according to the family.

In the lawsuit, the girl’s family says the school learned prior to the sexual assault charges that Labrie had been overly aggressive with another female student during an earlier sexual encounter, but took no “significant action to investigate.”

The school denies receiving any such report.

— Concord Monitor