(Providence, RI) -- A Massachusetts man is being sentenced for traveling to Rhode Island to have sex with a teenager he met online. The U.S. Justice Department says Andy Joseph of Brockton was ordered on Tuesday to serve ninety months in federal prison for the charges he pleaded guilty to in April, traveling interstate with the intent to engage in illicit sexual misconduct. Prosecutors say Joseph also admitted to posting paid advertisements on Backpage.com for commercial sexual services involving the 15-year-old girl.