In 2015, a 16-year-old girl from Rhode Island met a man who picked her up and took her to a hotel in New Jersey, where he had sex with her and then posted her photos in an advertisement for escort services. Not long after, Matthew Sipps, 40, of Delaware County, answered the ad and paid to have sex with the girl at a hotel, then took her to Aston and kept her in his home for a month before she was able to call her mother, who contacted police, according to investigators.