One week after former President Donald Trump was convicted of 34 felony counts by a 12-member jury, the judge on Friday raised concern about a social media post shared to the court’s page around the time the jury’s verdict came down by a person claiming to be the “cousin” of a juror.

Judge Juan Merchan shared in a letter to Trump’s attorneys and prosecutors with Manhattan District Attorney Alvin Bragg’s office, flagging a comment by a Facebook user claiming to be related to a juror on the case. A deeper look at the account revealed the user, “Michael Anderson,” to be a self-described “professional s*** poster.”