American Paralympic gold medalist Robert Griswold was accused of raping and sexually assaulting an intellectually impaired teammate at the Tokyo Olympics and afterward, according to a lawsuit filed last week, per The Washington Post.

Griswold, a swimmer who won two gold medals at the Tokyo games, allegedly “maliciously targeted and groomed” a 19-year-old autistic teammate and took advantage of his intellectual disability that “rendered him vulnerable and naive to abuse.”

“This case is a horrific tragedy, where a young man who defied all odds to become a world-class Paralympic swimmer had his life utterly shattered by rape and abuse when he was paired with a team member who was a violent sexual predator,” the complaint states, via The Post.