May 29, 2026 / 9:14 PM EDT / CBS News Add CBS News on Google The federal prosecutor who signed an indictment accusing former FBI Director James Comey of threatening President Trump by posting an image of seashells arranged as "86 47" is no longer on the case, according to court papers filed late Friday.  Comey — a frequent Trump critic — was charged in North Carolina last month. The indictment has drawn stiff criticism , and Comey's legal team has signaled that it plans to seek dismissal of the case on the grounds of selective and vindictive prosecution. Friday's court filing requests that Assistant U.S. Attorney Matthew Petracca, who was listed as the government's lead lawyer on the Comey case, be removed from the docket. Federal prosecutor Timothy Severo was swapped in. Petracca has also been taken off at least three other cases since last week, according to court filings, which do not specify why he is stepping aside.  CBS News has reached out to Petracca and the U.S.…