Pennsylvania Man Charged in Alleged ISIS‑Inspired Weapons Plot

Overview

• Federal agents say they intercepted and arrested 21-year-old Jonathan Hunter Kramer after observing him return to a hotel carrying rifle magazines and ammunition and executing search warrants on his room and home.
• Investigators seized a semiautomatic rifle, five rifle magazines, a bipod and scope, roughly 190 rounds of ammunition, about 30 knives and other materials that prosecutors say show operational preparations.
• The Justice Department charged Kramer with receiving a firearm and ammunition knowing they would be used to commit a federal crime of terrorism and has asked that he be detained without bond.
• Court filings and the FBI say Kramer used an online alias, shared extremist material and pledged allegiance to ISIS, and that he was known to authorities from a 2023 juvenile investigation that led to adjudication.
• Officials describe the arrest as a disruption of an alleged attack and say the case raises questions about post-juvenile supervision, how tips and digital monitoring trigger follow-up, and how lone-actor plots are detected and stopped.