Blood Shot: V.I. Warshawski 5 by Sara Paretsky
When V.I. Warshawski is asked to search for the father of a childhood friend, she assumes it'll be a straightforward case. But the return to her old Chicago neighbourhood reignites dark memories from her past - memories she'd sooner forget.
As the body of another old friend suddenly turns up, V.I. finds herself embroiled in a dangerous quest for justice which pits her against the bosses of big business and industrial corruption. It's one of her toughest and most personal cases yet, one from which she may not emerge entirely unscathed . . .