An investigation by the House Ethics Committee into Rep. Matt Gaetz is reportedly getting some help from a witness who previously testified he’d seen the Florida Republican have sex with an underage girl. Joel Greenberg , who is currently serving a lengthy prison sentence on sex trafficking and other charges, has already turned over documents to the committee regarding his claims against Gaetz, according to The New York Times , citing Greenberg’s lawyer. “Mr. Greenberg has and will cooperate with any congressional request,” the lawyer, Fritz Scheller, was quoted as saying. Jillian L. Wyant, a spokesperson for Gaetz, told the paper the same documents had previously been provided to the Justice Department in their now-closed investigation and they had “deemed it unreliable and declined to press charges.”