 A week before her murder she had also written about an incident in which the Mexican Navy arrested nine policemen in the state who were allegedly working for a drug trafficking organization, the arrest of a high-profile leader of Los Zetas drug cartel known as "Comandante Chaparro", and a story involving mayor Martín Padua Zúñiga from the National Action Party (PAN) who was arrested with drug traffickers following a gunfight with the Mexican Army.Martínez Pérez was murdered early in the morning of 28 April 2012 in her home in the Felipe Carrillo Puerto neighborhood in Xalapa, the capital of Veracruz.When police went to her home to investigate in response to a neighbor's call about her door being open all day, Martínez Pérez's corpse was found on the bathroom floor.