Manki Lugo, 68, sweeps the office of the collective of 'Las Rastreadoras del Fuerte' in Los Mochis, Sinaloa, Mexico, March 16, 2019. She takes it upon herself to maintain the premises. Lugo can't remember how many bodies she has found in the seven years she has been searching for her 33-year-old son, Juan, who disappeared in July 19, 2015. REUTERS/Mahe Elipe