FBI 'Most Wanted' Professor Walter Lee Williams Arrested in Mexico

FBI 'Most Wanted' Professor Walter Lee Williams Being Deported From Mexico (ABC News)

Approximately a day after Walter Lee Williams was placed on the FBI's Most Wanted list, the alleged sexual predator was caught in a Mexican resort town, the FBI said today.

Williams, 64, who is accused of engaging in sex acts via webcam and in person with underage boys in the Philippines, was drinking coffee near a park in the Caribbean resort town of Playa del Carmen, Mexico, when authorities swooped in Tuesday to make the arrest, The Associated Press reported.

The FBI's Los Angeles office spokeswoman, Laura Eimiller, told ABCNews.com further information would be available at a news conference scheduled for this afternoon.

The FBI said Williams was a former professor at the University of Southern California, where he specialized in anthropology, history and gender studies, according to a search of the school's directory.

He is charged with one count of producing child pornography, one count of traveling for the purpose of engaging in illicit sexual conduct with a minor and two counts of engaging in illicit sexual conduct in foreign places, according to a statement from the Department of Justice.

According to officials, Williams met the underage boys online and engaged in sex acts with each of them over a webcam. In January 2011, he traveled to the country where he had allegedly had sex with the boys and even "produced sexually explicit photos" of one of them, according to the DOJ.

On Monday, Williams became the 500th person to be placed on the FBI's Most Wanted list.

"I analyzed the computers and the camera that belong to Williams and found child pornography," Jeff Yesensky, FBI special agent, said in a video posted online Monday to bring awareness to the case.

"Because of his status, he has the means and access to children, and that's what makes him dangerous," Yesensky said. "He preys on the most vulnerable children."