The FBI has arrested a man accused of sending Dallas reporter Kurt Eichenwald a tweet that triggered an epileptic seizure.

The agency announced that John Rayne Rivello, 29, of Salisbury, Md., was arrested Friday morning in Maryland on a cyberstalking charge.

Eichenwald tweeted that the man who "assaulted" him also is expected to be indicted by the Dallas district attorney on different charges in the next few days. 

Eichenwald's attorney, Steven Liberman, told Newsweek that "What Mr. Rivello did with his Twitter message was no different from someone sending a bomb in the mail or sending an envelope filled with anthrax spores."