Brothers Dante, Romulo, Dominador and Haiward de la Mance, known leaders of an armed group attached to the Philippine Army, are involved in the extrajudicial killing of their own cousin Frenie Landasan on March 28, 2015 at Purok 3 Brgy. Dalacutan, Cabanglasan, Bukidnon. Landasan was chairperson of Dalacutan-Higaonon Tribal Association.
The killing of Landasan was a retaliatory act of the De la Mance’s for the death of their kin Dorlito de la Mance, who was punished by the New People’s Army for his various crimes against the people.