HOW MAMIE TILL-MOBLEY AND EMMETT TILL SPARKED THE CIVIL RIGHTS MOVEMENT by Angela Joy ; illustrated by Janelle Washington ‧ The brutal killing of a Black youth turns his mother into an activist for justice. This poignant volume about the murder of Emmett Till focuses on his mother, Mamie Till-Mobley, and how her son’s death drove her to seek justice, first for him and then for the Black community. Mamie and her family moved from Mississippi to the outskirts of Chicago, hoping for a better life.