[1] She is most known for assassinating Colonel Roberto Quintanilla Pereira, the man responsible for chopping off Che Guevara's hands.

[2] Later, she entered a marriage briefly, but felt unhappy playing the "trophy wife" of a Bolivian-German mining engineer.

After her divorce in 1969, she became involved with the survivors of Che Guevara's routed guerrilla movement, the National Liberation Army of Bolivia (ELN).

[citation needed] After being under covert observation in Bolivia for several days, she and another guerrilla were eventually ambushed and killed by Bolivian security forces on 12 May 1973 in El Alto (in La Paz), where she was reorganizing the ELN.

According to Régis Debray, she was also preparing the abduction of the former Gestapo Chief of Lyon Klaus Barbie to bring him to Chile and consequently to justice in France where he was wanted as a Nazi war criminal.