(TNND) — A Wisconsin teenager has been charged in the death of his parents for allegedly killing them to “obtain the financial means” to assassinate President Donald Trump , according to a federal warrant.

Nikita Casap, 17, was charged last month with first-degree murder, theft and other crimes in the death of his mother, Tatiana Casap and his stepfather, Donald Mayer.

Authorities say that the teenager fatally shot the parents at their home outside Milwaukee in February and lived with the decomposing bodies for weeks before fleeing with $14,000 cash, passports and the family dog.

He was arrested last month in Kansas, where he was found with the money, passports, a car and the family dog.

Casap is currently in custody at the Waukesha County jail on a $1 million bond and is due in court next month to enter a plea deal.

Federal authorities are accusing Casap of planning his parents’ murders, buying a drone and explosives and sharing his plans with others, including a Russian speaker.

In a three-page antisemitic manifesto praising Adolf Hitler, Casap revealed his intentions.

“Casap appears to have written a manifest calling for the assassination of the President of the United States. 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.”

Prosecutors allege Casap was in contact with a person who speaks Russian and shared plans to flee to Ukraine.

Federal prosecutors say Casap’s manifesto includes his reasons for wanting to kill Trump as well as ideas of how he would live in Ukraine.

According to the warrant, the manifesto says the teenager wanted to bring down the government by “getting rid of the president and perhaps the vice president.”

County authorities also charged Casap with hiding a corpse, theft and misappropriating identification to obtain money.

The bodies of Tatiana Casap, 35, and Mayer, 51, were found on Feb. 28.

Authorities believe the parents were killed weeks before their bodies were discovered. Prosecutors in court said that the couple’s bodies were so badly decomposed that they had to be identified through dental records.