Shannon Booker, who once said a boyfriend's abuse drove her to kill him, has been found not guilty of theft she claimed was instigated by another abusive man.

Booker, 32, was convicted of manslaughter for shooting her boyfriend, Jose Echemendia, in 1989. She became known as one of the "Framingham Eight" inmates who claimed self-defense in killing their abusive lovers.She was paroled in 1994 and later counseled battered women and educated others about the signs of an abusive relationship.

But Booker was arrested in October on charges she stole a woman's purse at a downtown store. She claimed her current boyfriend made her steal the purse.

Judge Herbert Hershfang of Boston Municipal Court found her not guilty by reason of insanity.