CBS/APMarch 31, 2014, 4:54 PM

Man who shot at White House sentenced to 25 years

This Nov. 21, 2011 file artist rendering shows Oscar Ramiro Ortega-Hernandez, center, before Magistrate Judge Alan Kay, left, in Washington. AP Photo/Dana Verkouteren, File

WASHINGTON -- An Idaho man who pleaded guilty to firing an assault rifle at the White House in 2011 has been sentenced to 25 years in prison.

A federal judge in Washington sentenced Oscar Ramiro Ortega-Hernandez on Monday.

Prosecutors had asked he spend 27 1/2 years in prison for the shooting. No one was injured, but prosecutors say Ortega-Hernandez hit the executive mansion about eight times and did nearly $100,000 in damage.

Ortega-Hernandez's lawyers argued he was suffering from extreme depression and mental stress at the time of the shooting and was under the misguided belief that Armageddon was coming. They asked for a 10-year sentence.

In a 20-minute video posted by CBS Affiliate KBOI in 2011 , Ortega-Hernandez claimed to be the second coming of Christ, and talked about Nostradamus and receiving a "message thorough time."

Prosecutors initially charged Ortega-Hernandez with attempting to assassinate President Barack Obama but agreed to drop the charge as part of a plea deal last year.

This Nov. 16, 2011 file photo shows law enforcement officers photographing a window at the White House in Washington, as seen from the South Lawn. A bullet hit an exterior window of the White House and was stopped by ballistic glass, the Secret Service said. An additional round of ammunition was found on the White House exterior.

AP Photo/Haraz N. Ghanbari, File