He was only 10 years old when the abuse started.

He’s now in his 30s, and federal investigators believe they finally have the man who molested him.

They also believe there may be more victims.

“We’re trying to get the word out,” Jason R. Jarnagin, supervisory special agent for the FBI’s Violent Crimes Against Children Squad in Buffalo, said Tuesday. “We think there are additional victims out there.”

The FBI is going so far as to release a photo of David Allen Vickers, the Ontario County man now accused of abusing the young boy from Buffalo and a second underage victim from Batavia.

Vickers appeared Monday before U.S. Magistrate Judge H. Kenneth Schroeder and was charged with transportation of a minor with intent to engage in sexual activity. The charge carries a mandatory minimum sentence of 10 years in prison and a maximum of life.

Now 49, Vickers is accused of sexually abusing the boy from Buffalo over a 10-year period starting in 1989 and the Batavia boy over a four-year period starting in 2000.

“It goes to show the FBI will pursue any crime against children, regardless of the age of the crime,” Jarnagin said.

Assistant U.S. Attorney Aaron J. Mango said Vickers, an over-the-road truck driver, took the Batavia victim on trips to New Jersey, Pennsylvania and Canada and engaged in sexual activity with the minor.

Like Jarnagin, Mango is convinced other boys may have been targeted by Vickers. “The government has obtained information that the defendant had contact with other victims,” he said. “We’re looking for anyone who has had contact with him as a minor.”

Vickers’ arrest Friday – he remains in federal custody – came just two weeks after his brother, Sean Vickers, was arrested by Batavia police in another sexual abuse case.

Batavia Detective Kevin Czora said the felony charges against Sean Vickers – sodomy and course of sexual conduct against a child – grew out of an investigation into allegations from several other underage boys.

“From there, we started doing more research into Sean Vickers’ history, and it just escalated from here,” Czora said Tuesday.

Sean Vickers is not charged in the federal complaint against his brother, but he is mentioned in it.

FBI agents said it was Sean Vickers who introduced his brother to the boy from Batavia.

David Vickers’ lawyer, Federal Public Defender Tracy Hayes, said he could not comment on the allegations against his client.