Abubakar Shekau s death marks a major shift in Nigeria s 12-year-old jihadist insurgency that has killed more than 40,000 people and displaced around two million in the northeast.
Islamic State West Africa Province (ISWAP) is now targeting Boko Haram s soldiers after raiding Shekau s stronghold in Sambisa forest in Borno state, local and security sources said.