President Donald Trump in the Oval Office at the White House in Washington, Feb. 21, 2025. A Wisconsin teenager was arrested in March on several charges, including two counts of first-degree murder, and federal investigators say that he had a broader plot to kill Trump. (Tierney L. Cross/The New York Times)

- A Wisconsin teen allegedly killed his parents in a plot to assassinate Trump and spark a political revolution.
- Nikita Casap, 17, was linked to a far-right terrorist group and possessed a manifesto praising Adolf Hitler.
- Deputies found the bodies hidden under blankets; Casap was later arrested in Kansas with weapons and stolen items.
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A Wisconsin teenager has been charged in the killing of his mother and stepfather in what federal authorities described as an attempt to obtain the money and autonomy he believed was necessary for a plot to kill President Donald Trump and overthrow the government.
Nikita Casap, 17, was arrested last month in the deaths of his mother, Tatiana Casap, 35, and stepfather, Donald Mayer, 51, according to the Waukesha County Sheriff’s Department.
Sheriff’s deputies found the bodies at the family’s home in Waukesha, about 17 miles southwest of Milwaukee, after receiving a call on Feb. 28 requesting a welfare check, the department said.
According to federal documents unsealed on Friday, the fatal shootings were part of a plan by Casap, who identified with a right-wing terrorist network known as the Order of Nine Angels, to assassinate Trump in what he believed would “foment a political revolution in the United States,” federal investigators said.
Casap also paid, at least in part, for a drone and explosives that he planned to use in an attack, according to the documents, which were filed in the U.S. District Court for the Eastern District of Wisconsin.
Casap’s lawyers could not be immediately reached Sunday for comment.
A ‘Manifesto’ Was Found on Suspect’s Phone
A self-described “manifesto,” found on Casap’s phone and detailed in the federal documents, contained images and praise of Adolf Hitler, as well as instructions to others to make bombs.
“By getting rid of the president and perhaps the vice president, that is guaranteed to bring in some chaos,” Casap wrote.
According to federal documents, sheriff’s deputies found the body of Tatiana Casap covered in blankets on Feb. 28 while responding to a call from Mayer’s mother, who said that she had been unable to contact the family, and that the younger Casap had not been at school in two weeks.
During a secondary search of the residence, deputies found Mayer’s body also covered in blankets, according to the documents. They also located a receipt for a .357 Magnum handgun, which was not in the home.
Based on cellphone records, security footage and witness statements, authorities determined that Mayer was killed on Feb. 11 at about 6:30 p.m., and that Tatiana Casap was killed about two hours later, according to the documents.
Security camera footage taken on Feb. 12 showed Nikita Casap, who was traveling with the family dog, at a truck stop in Walcott, Iowa, in Mayer’s car, according to the documents.
On Feb. 28, Mayer’s car was listed as stolen. That day, officers with the WaKeeney, Kansas, Police Department stopped Casap and saw a .357 Magnum handgun on the front passenger floorboard, according to the documents.
Officers also found ammunition, the wallets and phones of his mother and stepfather and “large amounts” of cash in dollars and euros.
Casap was charged with theft and possession of a firearm. He was later charged with several other felonies, including two counts of first-degree homicide and two counts of hiding a corpse, according to the Waukesha County Sheriff’s Department. He is scheduled to be arraigned on May 7.
—
This article originally appeared in The New York Times.
By Livia Albeck-Ripka/Tierney L. Cross
c. 2025 The New York Times Company
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