Charlotte, NC -- A teenage girl who allegedly had a lengthy sexual relationship with a former NASCAR publicist told authorities the man claimed to have victimized more than 50 children across the country, court documents indicate.

Richard "Chip" Williams, 48, was charged last week with raping a child and soliciting a minor for sex over the Internet. He is being held on $2 million bond.

He is accused of raping a 14-year-old girl whom he met on the Internet when she was 11, and arranging to meet what he believed was another teenage girl for sex.

An affidavit filed in the case says the 14-year-old girl said she had sex with a man she knew as "John Wisham," which police say is the identity Williams used online.

She said Wisham claimed "to have been with over 50 children in various forms of sexual exploitation."

"Hogwash," responded Williams' attorney, Locke Clifford.

The affidavit was part of a search warrant sought by a Guilford County sheriff's detective as officers prepared to search Williams' home and business in Mooresville.

Williams was NASCAR's spokesman from 1982 to 1994, when he started his own business.

The affidavit filed by Detective George Moore describes how the case against Williams developed, starting with the 14-year-old girl's claim that she began performing sex acts for Wisham when she was 11.

Moore said he read a sexually explicit online conversation between the girl and Wisham, then watched as she engaged the man in another explicit conversation over the Internet.

Another day, the girl met Wisham online again and this time introduced an undercover officer, who posed as a 15-year-old girl, the affidavit said. Soon after the conversation began, Wisham allegedly began talking about sex.

After several more online chats with the undercover officer, police traced Wisham's e-mails to Williams' company.