Zachary Clark Disseminated ISIS Propaganda and Bomb-Making Instructions in an Effort to Incite Acts of Terrorism and Violence in New York City and Elsewhere The Department of Justice announced that Zachary Clark, a/k/a “Umar Kabir,†a/k/a “Umar Shishani,†a/k/a “Abu Talha,†pleaded guilty to attempting to provide material support to the Islamic State of Iraq and al-Sham (ISIS). Clark pled guilty today in Manhattan federal court before U.S. District Judge Naomi Reice Buchwald. Judge Buchwald is scheduled to sentence Clark on Feb. 9, 2021, at 12:00 p.m.“Having pledged allegiance to ISIS, Clark provided specific instructions for how to conduct...