LAWTON, Okla. - A crafty criminal is accused of ripping people off while behind bars.
The Oklahoma inmate allegedly pretended to be with the FBI in order to defraud victims all over the country.
This week, a federal grand jury returned an indictment against Sean Siwek.
Siwek is charged with wire fraud and impersonating a federal officer, but is still in prison in McAlester for various assaults and robberies.
According to the federal indictment, while serving time at the Lawton Correctional Facility, Siwek defrauded victims in several states.
"The key to this was having access to cellular phones," said Sanford Coats, United States Attorney for the Western District of Oklahoma.
Prosecutors say the alleged fraud involved several steps, starting with smuggled cell phones.
They allege Siwek would then create fraudulent profiles on different dating sites and arrange to meet various victims for sex.
The final step in the fraud featured the suspect calling the victims, claiming to be with the FBI.
He told the victims they had arranged to have sex with a minor and needed to pay up to avoid be charged with the crime.
"In certain instances, they even pretended to be a parent and said the victims had contacted a minor and they had to pay or be exposed," said Coats.
Court records claim at least six victims were defrauded out of more than $130,000.
"Law enforcement officers aren't going to call and demand money," said Coats.
Coats believes the story serves as an important warning.
"If someone contacts you and claims to be law enforcement and wants money to avoid prosecution, that's a fraud," said Coats.
As for the suspect, he is already set to remain in prison until 2026.
However, if he's convicted of the new crimes, even more time could be added to that sentence.
Prosecutors also say the suspect didn't act alone and more charges could be filed against additional inmates.