The dissertation discusses memory and mourning policies in the face of anti-black violence from a transnational perspective, addressing the ways in which they occur in the black diaspora and returning the gaze to the Brazilian State. For this, I focus on families who lost their children to police violence, giving a special focus to mothers from mothers movements against violence, and based on their reports, I discuss the way in which families are affected and deal with the trauma of racial violence. The general objective is to understand how, in the face of grief and trauma, family members become activists and engage in a fight for justice and memory. Thus, we carried out a case study on the Jacarezinho Mass memorial, where the (im)possibilities of mourning and memory are discussed, as well as the political disputes involved in its construction and destruction.