Centennial, Colo. (AP) The man who prompted a federal investigation into a possible Barack Obama assassination plot is scheduled to be formally charged on state drug and weapons offenses.

Tharin Gartrell is due in Arapaho Cunty court on Thursday. He also faces federal charges.

Authorities say police found scoped rifles, wigs, fake ids and a bulletproof vest in the 28-year-old's rented truck after he was pulled over in the Denver area last weekend. The resulting investigation led to the arrest of Gartrell and two other men who authorities say talked about killing Obama.

The U.S. attorney's office later said Gartrell and the other men had no firm assassination plot and were making racist threats.

The other men are also in custody on state and federal charges.