Nikita Casap, a 17-year-old from Wisconsin, is accused of murdering his parents to fund a plan to assassinate President Donald Trump, according to a federal affidavit released recently. The affidavit sheds new details on the case, revealing disturbing motivations behind the brutal killings.
The Murders of Tatiana Casap and Donald Mayer
On February 28, 2025, the bodies of Tatiana Casap, 35, and her husband Donald Mayer, 51, were discovered in their home in Waukesha, Wisconsin. Authorities believe they were killed more than two weeks before the bodies were found.
Nikita Casap has been charged with two counts of first-degree murder, two counts of hiding a corpse, theft, and other offenses related to the deaths of his parents. The Waukesha County Sheriff’s Office said the investigation efforts emphasize community safety and justice, urging anyone with information to come forward.
Casap’s Plan to Assassinate Trump
The newly released federal affidavit reveals probable cause to believe that the murders were part of a larger plot to assassinate President Donald Trump, as well as conspiracy and weapons of mass destruction charges.
After the killings, Mayer’s car was found to be stolen, and Casap was arrested during a traffic stop in Kansas. In the vehicle, officers discovered a gun, ammunition, and $14,000. A search warrant on Casap’s phone revealed chilling information.
Extremist Ties and Violent Intentions
The phone search revealed Casap’s involvement with The Order of Nine Angels, an extremist neo-Nazi group. Authorities also found text messages in Russian and a three-page manifesto discussing assassination, bomb-making, and terrorist attacks.
According to the affidavit, Casap confided in a classmate about his plan to kill his parents, explaining that he was in contact with someone in Russia who was part of a larger conspiracy to assassinate Trump and overthrow the U.S. government.
A Manifesto for Chaos
Casap’s three-page document, found on his phone, detailed his reasoning for wanting to kill Trump. He argued that the assassination would create chaos in the U.S. government, claiming that eliminating Trump and possibly the vice president would cause a collapse in the nation.
The manifesto also contained hateful rhetoric, blaming Jewish people for “white genocide” and promoting violent white supremacist ideology. The document included images of Adolf Hitler with the text “Hail Hitler, Hail the white race, Hail victory.”
Casap’s Plan and Arrest
According to the affidavit, Casap had written a manifesto calling for Trump’s assassination and had been in touch with others about his plan. He also purchased a drone and explosives to use in an attack, which authorities believe was intended as a weapon of mass destruction.
Casap allegedly murdered his parents to obtain the financial means and autonomy needed to carry out the assassination plot.
Legal Proceedings and Bond
Casap remains in custody with a $1 million bond. On April 9, 2025, he had a preliminary hearing related to his parents’ deaths but did not enter a plea. He is scheduled for arraignment in May.
Pennsylvania Man Charged in Threat Against Trump
Meanwhile, in Pennsylvania, a man named Shawn Monper, 32, has been charged with making threats to kill President Trump and other officials. Monper posted threatening comments on YouTube, urging violence against Trump and Immigration and Customs Enforcement agents.
Monper resides in Butler, Pennsylvania, the same town where Thomas Matthew Crooks fired shots at Trump during a 2024 rally, injuring Trump and killing one attendee. Crooks was shot and killed by Secret Service snipers shortly after.