Nikita Casap, 18, is expected to accept a plea agreement Thursday in Waukesha County after being accused of killing his mother and stepfather to finance an alleged plot to assassinate President Donald Trump. He faces homicide, concealment and theft charges; a trial had been scheduled for March 2. Federal affidavits allege he bought a drone and explosives, wrote a manifesto calling for Trump's assassination and communicated with others about overthrowing the government. Investigators also recovered cellphone messages in which Casap discussed fleeing to Ukraine.
Wisconsin Teen Expected To Accept Plea In Case Alleging Parents Killed To Fund Plot To Assassinate Trump
FILE - Nikita Casap appears at his arraignment May 7, 2025 in Waukesha County Circuit Court in Waukesha, Wis. (Mark Hoffman/Milwaukee Journal-Sentinel via AP, Pool, File)
Nikita Casap, 18, is expected to accept a plea agreement Thursday in Waukesha County after being accused of killing his mother and stepfather and using their money to finance an alleged plot to assassinate President Donald Trump.
Case Details and Charges
Casap faces multiple state charges, including two counts of homicide, two counts of hiding a corpse and theft. Court records do not list the terms of the expected plea agreement. A trial had been scheduled to begin March 2.
Harm Venhuizen, a spokesperson for the State Public Defender's Office, which represents Casap, said ethics rules prevent the office from commenting publicly. The Waukesha County District Attorney's Office did not respond to requests for information about the agreement.
Allegations and Timeline
According to a criminal complaint, investigators say Casap shot his mother, Tatiana Casap, and his stepfather, Donald Mayer, at their Waukesha home on or about Feb. 11. The complaint alleges he lived with the decomposing bodies for weeks before fleeing across the country in his stepfather's SUV.
Authorities say Casap took roughly $14,000 in cash, jewelry, passports, his stepfather's gun and the family dog. He was arrested during a traffic stop in Kansas on Feb. 28.
Federal Allegations
Federal investigators have alleged a broader plot linked to the killings. A federal search warrant says Casap purchased a drone and explosives, wrote a manifesto calling for President Trump's assassination and communicated with others about plans to kill Trump and to overthrow the U.S. government.
"The killing of his parents appeared to be an effort to obtain the financial means and autonomy necessary to carrying out his plan," the warrant said.
Detectives also recovered messages on Casap's cellphone from January 2025 in which he asked how long he would need to hide before being moved to Ukraine. The complaint notes an unidentified person replied in Russian, though the document does not record the content of that reply. In another message, Casap allegedly asked whether he could "live a normal life" in Ukraine even if his role in the killings were discovered.
Next Steps
Casap is expected to appear in Waukesha County Circuit Court for a morning hearing to accept the plea agreement. The terms remain undisclosed and the allegations have not been proven in court. The case is ongoing, and both state and federal inquiries appear active.
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