[The Conversation Africa] The Nigerian military says it is investigating claims that the Boko Haram leader Abubakar Shekau is dead. His death has not been independently confirmed. It is also not the first time a claim like this has been made. The reports have nevertheless raised questions about who has the upper hand in the region - Boko Haram or the breakaway Islamic State West Africa Province. Adejuwon Soyinka, The Conversation's West Africa regional editor, asked Folahanmi Aina, an expert on Boko Haram and security in the Lake C
