Man Sentenced to 20 Years in Prison for Attempting to Provide Material Support to ISIS Published: 14 May 2021 14 May 2021 Washington, DC - A New York man was sentenced Wednesday to 20 years in prison for attempting to provide material support to the Islamic State of Iraq and al-Sham, aka ISIS. Zachary Clark, aka Umar Kabir, Umar Shishani and Abu Talha, 42, of Brooklyn, pleaded guilty in August 2020 to one count of attempting to provide material support or resources to a designated foreign terrorist organization, namely, ISIS. “Today’s 20-year sentence recognizes the gravity of Clark’s conduct, including his calls for other ISIS supporters to carry out lone wolf terrorist attacks in New York City,” said Assistant Attorney General John C. Demers for the Justice Department’s National Security Division. “Having pledged allegiance to ISIS, Clark provided others with specific instructions on knifing and bomb-making for use in such attacks. We remain vigilant to the threat of terrorism and committed to identifying and holding accountable those who threaten our communities through their support for foreign terrorist organizations.”