[allAfrica] Johannesburg -- The Boko Haram terrorist group claimed to have killed 78 people in Nigeria's Borno State last week. The bodies of at least 40 migrant rice farmers, working in Zabarmari village, were beheaded while harvesting crops. The group says it is Muslim, but its brand of violent religious supremacy is rejected by Nigeria's Muslim faith leaders. Extremist's attacks, primarily in northern Nigeria, have killed tens of thousands of people since 2011, and displaced more than 2,5 million in the eight-nation Lake Chad Basi