Summary: Presidential candidate Fernando Villegasencio shot dead after campaign event. Authorities declare state of emergency following the shooting. Villegasencio's campaign focused on ending corruption and organized crime . Candidate's defiance against criminal threats underscored his commitment. Criminal gang Los Lobos claims responsibility, but authorities arrest suspects. Ecuador grapples with increasing violence and in security amidst political transition. President Lasso unveils measures to combat rising violence . Nation mourns Villegasencio's death and questions its security situation. Ecuador 's...