A Butler, Pennsylvania man faces federal charges after allegedly posting numerous threats online, including stating he was “going to assassinate him myself” in reference to President Donald J. Trump, according to court documents.
Shawn Monper, 32, was arrested Wednesday and charged by federal criminal complaint with making threats to assault and murder President Trump, other U.S. officials, and agents with U.S. Immigration and Customs Enforcement (ICE).
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The investigation began on April 8, 2025, when the FBI National Threat Operations Section (NTOS) received an alert about threatening comments posted to YouTube under the username “Mr Satan.” Federal agents traced the internet activity associated with the “Mr Satan” account to Monper’s residence, the complaint states. The threats were reportedly posted between January 15 and April 5, 2025.
According to the complaint, the investigation revealed Monper obtained a firearms permit shortly after President Trump’s inauguration.
Using the “Mr Satan” account, Monper allegedly made several alarming statements regarding firearms and potential violence. In February 2025, he reportedly commented, “I have bought several guns and been stocking up on ammo since Trump got in office.”
In March 2025, he allegedly wrote, “Eventually im going to do a mass shooting,” and later added, “I have been buying 1 gun a month since the election, body armor, and ammo.”
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Specific threats detailed in the criminal complaint include:
- February 17, 2025: “Nah, we just need to start killing people, Trump, Elon, all the heads of agencies Trump appointed, and anyone who stands in the way… American Revolution 2.0”
- March 4, 2025: “im going to assassinate him myself.” (Posted under a video titled “Live: Trump’s address to Congress”)
- March 18, 2025: “ICE are terrorist people, we need to start killing them.”
- April 1, 2025: “If I see an armed ice agent, I will consider it a domestic terrorist, and an active shooter and open fire on them.”
Attorney General Pamela Bondi and Acting U.S. Attorney Troy Rivetti for the Western District of Pennsylvania announced the charges.
“I want to applaud the outstanding and courageous investigative work of the FBI and the Butler Township Police Department, who thankfully identified and apprehended this individual before he could carry out his threats against President Trump’s life and the lives of other innocent Americans,” said Attorney General Bondi. “Rest assured that whenever and wherever threats of assassination or mass violence occur, this Department of Justice will find, arrest, and prosecute the suspect to the fullest extent of the law and seek the maximum appropriate punishment.”
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Monper was arrested on April 9 by the FBI with assistance from the Butler Township Police Department. He appeared in court on April 10 and was ordered detained pending preliminary and detention hearings scheduled for April 14 at 1:00 pm.
The investigation is ongoing and being conducted by the FBI and the Butler Township Police Department.
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