One of 19 suspects in a multistate prostitution ring pleaded guilty Monday, the day his trial was scheduled to start. Twenty-five-year-old Kelvin Scott of Spencer, Oklahoma, pleaded guilty to one of the four counts issued by a federal grand jury. Authorities said the other three counts will be dismissed when Scott is sentenced. Scott said he had tricked a 13-year-old girl into working as a prostitute in Texas by telling her she was getting in a car to "go party." He also faces other charges related to prostitution. The FBI led an investigation into Oklahoma City-based pimps trafficking young prostitutes to Texas, Arkansas, Colorado, Florida, Pennsylvania and other states. The case led to nine federal indictments and ten state warrants issued in May.