Videos show 103 different victims.

In what Attorney General Beau Biden said is likely the largest case of its kind in American history, a Sussex County grand jury has indicted accused child rapist Dr. Earl B. Bradley on 471 counts of sexual abuse against a total of 103 victims over an 11-year period.

The charges stem from 13 hours of videotape recovered from the former Lewes pediatrician’s home and office after investigators executed search warrants there in December.

At press conference in Dover Feb. 22, Biden said the videos show Bradley sexually molesting and having intercourse with children, beginning with episodes taped in early December, 1998, and concluding with tapes made on or about Dec. 13, 2009, just five days before his arrest.

The indictment lists alleged offenses against 102 Jane Does and one John Doe. The attorney general’s office said it has determined the names of some of the victims, but others have yet to be positively identified.

Prosecutors said they could not release the estimated age range of the victims.

To determine more the identities of more victims, Biden asked parents whose children were patients of Bradley to contact the Attorney General’s office and provide photos taken during all the years their children visited Bradley’s practice.

Biden also said the investigation will remain open as the case proceeds and he fully expects more charges to materialize and more victims to be added to the list.

If convicted, Bradley could face life in prison without the possibility of parole.

“I am committed to prosecuting this case to the fullest extent of the law,” Biden said.

At times choking back tears, Biden expressed his gratitude to the team of prosecutors and state police personnel who have helped put the case together.

“Excuse my emotion. I’m very proud of the team and their efforts,” he said. “These crimes were committed against the most vulnerable among us; those without a voice.”

Bradley will be arraigned on the charges in the coming days, likely at Superior Court in Georgetown.

Since his arrest, Bradley has been held in lieu of $2.9 million bail at the James T. Vaughn Correctional Institution near Smyrna.

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