Shawn Monper, 32, a resident of Butler, Pennsylvania, has been charged by federal criminal complaint with making threats to assault and murder President Donald Trump, other US officials and US Immigration and Customs Enforcement (ICE) agents. According to the federal criminal complaint, on April 8, the FBI National Threat Operations Section (NTOS) received an emergency disclosure regarding threats posted to YouTube by user "Mr Satan." The subsequent federal investigation affirmed that the internet activity associated with "Mr Satan" corresponded with Monper's residence.