In the Lenca tradition, female spirits reside in rivers and women are their main guardians, which is why Murilllo was one of the leaders of the movement against the granting of rivers to private companies and the construction of hydroelectric plants, due to their environmental impact and cultural in lands historically inhabited by indigenous people.
During the 1980s, while she was active in the Lorenzo Zelaya insurrectionary movement, Murillo was kidnapped and tortured for political reasons by the Battalion 3-16 of Gustavo Álvarez Martínez when the National Security Doctrine was maintained.
In 2013, Murillo was a candidate for Deputy of the National Congress, for Cortés, in the general election, representing Liberty and Refoundation coordinated by former President Manuel Zelaya.
On 27 August, she was killed, shot in the forehead after defending herself, by a hit man while working the land on the North Coast of Honduras, in Planón, Villanueva, Cortés.
[1] On 17 September, the Inter-American Commission on Human Rights (IACHR) urged the Honduran government to conduct a due diligence investigation into her murder, but to this day her case remains unpunished.