A US teenager has been charged with killing his parents to allegedly "obtain the financial means" to assassinate President Donald Trump and overthrow the government.
High school student, Nikita Casap, 17, was charged with first-degree murder, theft and other crimes in the deaths of his mother, Tatiana Casap and his stepfather, Donald Mayer.
Authorities allege the Wisconsin teenager fatally shot them at their home in February and lived with the decomposing bodies for weeks before fleeing with $US14,000 ($22,000) in cash as well as passports and the family dog.
He was arrested last month in Kansas.
The teen is in custody at the Waukesha County Jail on a $US1 million bond and is due in court next month to enter a plea.
County prosecutors have offered a glimpse of the federal allegations, which were outlined in an unsealed FBI warrant.
What was Nikita Casap's alleged plan?
Federal authorities accuse the teen of planning his parents' murders, buying a drone and explosives, and sharing his plans with others, including a Russian speaker.
They allege his intentions are detailed in a three-page antisemitic manifesto praising Adolf Hitler.
The warrant also contains excerpts of communications on TikTok and the Telegram messenger app.
"He was in touch with other parties about his plan to kill the President and overthrow the government of the United States," the search warrant says.
"The killing of his parents appeared to be an effort to obtain the financial means and autonomy necessary to carrying out his plan."
What did the court hear?
In court, prosecutors alleged the teen was in touch with a person who spoke Russian and shared a plan to flee to Ukraine.
Federal prosecutors alleged Nikita's manifesto outlined his reasons for wanting to kill Mr Trump and included ideas about how he would live in Ukraine.
Citing Nikita's alleged writings, the federal warrant said the teenager wanted to spur governmental collapse by "by getting rid of the president and perhaps the vice president".
In court last month, Nicole Ostrowski, Nikita's public defendant, moved to dismiss some of the charges against her client, including theft, and she noted her client's age.
"He is young. He is still in high school," she said last month.
County authorities also charged Nikita with hiding a corpse, theft and misappropriating identification to obtain money.
Officers found the bodies of Nikita's parents in February after his stepfather did not report for work and Nikita skipped school for about two weeks.
Authorities believe the parents were killed weeks earlier.
Prosecutors said in court that the couple's bodies were so badly decomposed that they had to be identified through dental records.
ABC/AP
