Complex sentence: The Commission on Human Rights is investigating the incidents regarding the murders of Lumad leaders and school official by a paramilitary group Magahat/Bagani Templa, Mae Fe.
Split into simpler sentences: The Commission on Human Rights is investigating the incidents regarding the murders of Lumad leaders and school officials. These murders were committed by a paramilitary group by the name of Magahat-Bagani Templa, Mae Fe.