Original sentence: Barbara Greco de Elizalde/Rebeca Sanchez (main antagonist/villain)  Dubbed "La Hiena" by the employees of the Elizalde family, Barbara Greco was hiding a dark past of murder, deceit, and sabotage.She had murdered of Montserrat Elizalde, mother of Fernanda and the other Elizalde children
Edited sentence: Barbara Greco de Elizalde/Rebeca Sanchez (main antagonist/villain)  Dubbed "La Hiena" (The Hyena) by the employees of the Elizalde family, Barbara Greco was hiding a dark past of murder, deceit, and sabotage.She murdered Montserrat Elizalde, mother of Fernanda and the other Elizalde children