Her name is Knight
(Book)

"Stolen from her Ghanaian village as a child, Nena Knight has plenty of motives to kill. Now an elite assassin for a powerful business syndicate called the Tribe, she gets plenty of chances. But while on assignment in Miami, Nena ends up saving a life, not taking one. She emerges from the experience a changed woman, finally hopeful for a life beyond rage and revenge. Tasked with killing a man she's come to respect, Nena struggles to reconcile her loyalty to the Tribe with her new purpose. Meanwhile, she learns a new Tribe council member is the same man who razed her village, murdered her family, and sold her into captivity. Nena can't resist the temptation of vengeance--and she doesn't want to"--,Provided by publisher.