OAKLAND, Calif. -

A man who hoped to start a violent revolution in 2010 was sentenced to more than 400 years in prison for opening fire on California Highway Patrol officers.

An Alameda County Superior Court jury in Oakland convicted 48-year-old Byron Williams of Groveland last month of four counts of premeditated attempted murder of a peace officer and of weapons charges.

Judge C. Don Clay on Thursday sentenced Williams to 401 years and four months to life in prison.

The San Francisco Chronicle reports that in July 2010, Williams had planned to drive to San Francisco and kill workers at the American Civil Liberties Union and the Tides Foundation.

But before he could carry out his plan, CHP officers stopped him for speeding, and he opened fire on them, stopping only after he was wounded in the gunfire.