Question: Marilyn Buck participated in the prison escape of what Black Liberation Army member?
Sentence (from "Assata Shakur"): Assata Olugbala Shakur (born JoAnne Deborah Byron; July 16, 1947, often referred to by her married surname Chesimard), is a former member of the Black Liberation Army, a black nationalist urban guerrilla group, who was convicted in 1977 of the first-degree murder, under New Jersey's "aiding and abetting" statute, of State Trooper Werner Foerster during a shootout on the New Jersey Turnpike in 1973.
Relevant evidence: Yes