El 13 October 2017, Gabriel Becerra, Nixon Padilla and Andrés Álvarez, members of the university workers’ union SINTRAUNICOL (Sindicato de Trabajadores y Empleados Universitarios de Colombia) at the Cooperative University of Colombia, based in Bogotá, were threatened along with other social leaders, via a pamphlet of the Autodefensas Gaitanistas de Colombia.