A Wisconsin teenager charged with killing his parents was planning to assassinate President Donald Trump as part of a plot to overthrow the government, according to an FBI affidavit unsealed Sunday.

The 17-year-old, Nikita Casap, faces two counts of first-degree murder, two counts of hiding a corpse, theft and other charges in connection with the deaths of his mother, Tatiana Casap, and his stepfather, Donald Mayer.

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