"The Symbionese Liberation Army (S.L.A.) was an American self-styled urban guerrilla warfare group active between 1973 and 1975 that considered itself a revolutionary vanguard army. The group committed bank robberies, two murders and other acts of violence.
The S.L.A. became internationally notorious for kidnapping media heiress Patty Hearst, abducting the 19-year-old as she and her 26-year-old boyfriend, Steven Weed, sat relaxing in their Berkeley, California home."
