The Know by Martina Cole

Joanie Brewer' s children meant the world to her. She'd do anything to protect them, even resorting to prostitution and petty crime in order to feed and clothe them. So when her beautiful teenage daughter is raped and murdered, only one thing will stop Joanie's pain - seeing her daughter's killer brought to justice. Joanie knows who he is and she'll do whatever it takes to nail him...