Abstract Decapitation strategies have often been linked to counterterrorism. The existing literature suggests the results of these strategies are mixed. Previous studies suggest that the death of a prominent leader may not necessarily end the crisis; it all depends on the group's infrastructure, ideology, leadership traditions, and extent of its penetration in society. This article takes a critical look at the impact of a recent leadership decapitation in Nigeria. Abubakar Shekau, the leader of the Boko Haram movement in the Lake Chad Basin countries, was killed on 19 May 2021 by a faction of the movement known as the Islamic State of West African Province (ISWAP). This article argues that Shekau's case has paradoxically helped to strengthen ISWAP's position, giving it new recruits and other resources and perhaps most importantly reinforced its position with local communities. This has implications for the Nigerian state, its neighbours and, because of Boko Haram's links to ISIS, the wider war on terrorism.