In March 2025, Monper posted: “Eventually I’m going to do a mass shooting.” A week later, Monper commented: “I have been buying one gun a month since the election, body armor, and ammo.”
Investigators determined that Monper posted several threatening statements regarding President Trump, other United States officials, and ICE agents during the period between January 15, 2025, and April 5, 2025, including the two to which Monper specifically pleaded guilty: in February, “Nah, we just need to start killing people, Trump, Elon, all the heads of agencies Trump appointed, and anyone who stands in the way…”
In mid-March, he posted, “ICE are terrorist people, we need to start killing them.”
Monper is from Butler County, where Trump survived an assassination attempt while campaigning for the presidency in 2024.