Yiya Murano poisoned her friends to cover up scams in 1970s Argentina and became a dark figure in popular culture. Freed in the 1990s, she reappeared as a pop icon. Today, her son Martín seeks to reveal her true face. Yiya Murano poisoned her friends to cover up scams in 1970s Argentina and became a dark figure in popular culture. Freed in the 1990s, she reappeared as a pop icon. Today, her son Martín seeks to reveal her true face.
