A Deathly Rattle

In a Game of Rivals...Stakes are Deadly.
Private detective and new mom, Kate Connolly, is no stranger to solving crimes with a baby on her hip. But in just a few months, she'll have three babies, and her to-do list has never been longer. When someone shoots rival PI Vicente Domingo, Kate jumps to take the case.
Is the would-be murderer someone Vicente's been investigating recently?
Or does it have something to do with a shadowy secret from Vicente's past? Can Kate crack the case before the would-be murderer comes back to finish the job—or before her mom decorates the twins' new room in the world's worst nursery theme while Kate's not looking?