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A man who allegedly sent a tweet to a reporter that triggered a seizure was arrested998 Archivescharged by the FBI last week and on Monday he was charged with more crimes by the Dallas district attorney.

John Rivello, 29, was arrested Friday by the FBI in connection with sending a strobing GIF in a tweet last December to Dallas-based journalist Kurt Eichenwald, who has epilepsy. He was charged with cyberstalking Friday after Eichenwald suffered a seizure and pursued legal action against the troll.

On Monday, the Dallas County District Attorney's Office filed more charges against Rivello, including aggravated assault with a deadly weapon, according to a DA spokeswoman. A hate crime enhancement was added because it appears that Rivello targeted Eichenwald because he is Jewish.

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Rivello's weapon had been a tweet with a flashing GIF that allegedly said, "You deserve a seizure for your post." (Screenshot below.)

SEE ALSO: Troll sends strobing GIF to journalist with epilepsy, triggers seizure Original image has been replaced. Credit: Mashable

Eichenwald posted Monday about the new charges and shared the indictment document, which details how the GIF and tweet constituted a deadly weapon used on someone susceptible to seizures, that the strobing image is known to trigger seizures, and that it was used for that reason.

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The FBI took Rivello into custody in Maryland, where he lives.

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