ZAMBOANGA CITY: Six people were killed when a deranged man attacked them with a bolo before being killed by a villager who was also wounded in the rampage in Zamboanga del Sur, police said on Thursday. Police said Remie Arnatis barged in two houses and attacked his neighbors without any warning or provocation in the village of Labangon in Dumingag town. In a horrific detail of the mass murder, police said Arnatis hacked his victims one at a time and killed four family members in a house before walking with his bloodied bolo to the next house where he killed a farming couple. Lito Angilis, 29, who was also hacked several times by Arnatis, managed to grab a bolo and attacked and killed the deranged man, police said. The fatalities were identified as Merlita Emoc, 27; Junrey Emoc, 7; Merlyn Emoc, 4; Nak-Nak Emoc, 2; and the couple Samuel Langubon, 57, and Presciosa, 59. Regional police spokesman Chief Insp. Ariel Huesca said initial investigation showed that Arnatis was suffering from a mental illness.