Clift Seferlis, 55, of Garrett Park, Md., pleaded guilty on Monday to sending “numerous threats” to Jewish organizations in Maryland, Massachusetts, Pennsylvania, Virginia and Washington, D.C., the U.S. Department of Justice said.

Seferlis made the threats between March 2024 and June 2025, when he was arrested.

He threatened more than 25 Jewish institutions, including “synagogues, Jewish museums, Jewish community centers, Jewish schools, Jewish non-profit organizations and a Jewish delicatessen,” the department said.

It added that his letters and postcards “threatened to destroy physical buildings and/or to injure individuals.”

Some of these threats referred to dangerous weapons, fire or explosives, the Justice Department said. When he is sentenced on March 16, he faces up to 169 yea

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