Authorities on Thursday charged Oscar Ramir

Oscar Ramiro Ortega-Hernandez

According to the criminal complaint filed in the U.S. District Court for the Western District of Pennsylvania states, Ortega-Hernandez "knowingly did attempt to kill the President of the United States."

The Associated Press reported: "According to a court document released after the hearing, authorities recovered nine spent shell casings from Ortega's car, which was abandoned near the White House. A person who knows him subsequently told investigators that he had become increasingly agitated with the federal government and was convinced it was conspiring against him, the document said. Others told investigators that Ortega had said Obama was 'the anti-Christ' and the 'devil.' Ortega also reportedly said he 'needed to kill' the president."

The 21-year-old Idaho man made his first appearance in a federal court on Thursday in Pittsburgh one day after his arrest.

According to USA Today: "Ortega sat quietly as the hearing began, his hands free but his feet shackled. The 21-year-old said only, "Yes, ma'am" when he was asked if he understood that he would be going back to Washington to face the charge."

Ortega-Hernandez was arrested Wednesday in a Western Pennsylvania hotel, five days after the shooting incident. The bullets were found on the South Side of the White House, CNN reported.

"A round was stopped by ballistic glass behind the historic exterior glass," a Secret Service statement said. "One additional round has been found on the exterior of the White House. This damage has not been conclusively connected to Friday's incident, and an assessment of the exterior of the White House is ongoing."

The President and First Lady Michelle Obama were away from the White House at the time of the shooting.

If convicted, Ortega-Hernandez faces a maximum life-sentence in prison and a $250,000 fine. He will remain in federal custody until a magistrate in Washington determines whether he should be jailed until his trial.