Matthew Petracca, a former Republican county committeeman, was the rookie federal prosecutor who brought the highly criticized case to a federal grand jury. A rookie federal prosecutor who brought a case accusing former FBI Director James Comey of threatening President Donald Trump’s life by posting a photo of seashells on Instagram has stepped off the case.Matthew Petracca, who had been recently hired as an assistant U.S. attorney in the Eastern District of North Carolina, is no longer on the Comey case, according to a court filing.Petracca also dropped off of other criminal cases in the Eastern District of North Carolina...