According to court documents, James Cifala, 47, exchanged sexually explicit picture messages -- a practice known as "sexting" -- with a 16-year-old girl.
"The parents of a teenage girl contacted the FBI and reported that their daughter was having what appeared to them to be an inappropriate relationship with an adult male," said U.S. Attorney Rod Rosenstein. They didn't know at the time who it was."
Copies of some of the text messages are in the criminal complaint. Investigators said Cifala texted to the girl that she should call him "Johnny."
Authorities said Cifala gave the girl the phone for the purpose of dealing with him. The current charge doesn't allege that he committed an actual sex crime.