Olson, 62, was freed just after midnight from the Central California Women's Facility in Chowchilla, in the heart of the state's farm country about 150 miles southeast of San Francisco, said corrections spokeswoman Terry Thornton.

Thornton said two parole agents picked Olson up and took her to an office in Madera County, where she was processed and released her to her husband.

Olson served seven years—half her sentence—after pleading guilty to placing pipe bombs under Los Angeles Police Department patrol cars and participating in a deadly robbery of a bank in a Sacramento suburb. The crimes took place while she was a member of the Symbionese Liberation Army, most notorious for kidnapping newspaper heiress Patty Hearst.

She was released by mistake a year ago after California corrections officials miscalculated her parole date, joining her family for five days before she was re-arrested. Authorities now say she has served the proper seven-year sentence.
Copyright 2009 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.