Who is Latisha Williams from A Hope in the Unseen: An American Odyssey from the Inner City to the Ivy League and what is their importance?

Latisha Williams was one of Cedric's classmates at Ballou High School. She is described as a good student, as well as a good friend to Cedric. The two are never involved romantically, and although, Latisha goes onto enroll at the University of D.C., she drops out to pursue a life of religious work.