Print Continue to article content In this Monday, Sept. 30, 2019, file photo, Joel Greenberg talks to the Orlando Sentinel during an interview at his office in Lake Mary, Fla. | Joe Burbank/Orlando Sentinel via AP Gaetz 'wingman' set to plead guilty to trafficking a minor and agrees to cooperate with feds TALLAHASSEE, Fla. — A key figure in the federal probe into Rep. Matt Gaetz will plead guilty to six federal crimes, including sex trafficking of a child, in a plea deal that could spell trouble for the Republican congressman. As part of his deal with federal prosecutors, Joel Greenberg, a former Florida county tax collector, has also agreed to “cooperate fully with the United States in the investigation and prosecution of other persons, and to testify” in future proceedings, according to court documents filed Friday in Orlando federal court.