In the winter of 2001, in his favorite cafe in Boston, Walt Steadman witnesses a shooting that leaves four people dead. In the wake of this event, Walt is left to consider what - if anything - he has made of his life. GIRLS I KNOW is a novel about Boston and its many neighborhoods, about the challenges that arise when people try to help others, and about what it means for three very different people when their lives change, irrevocably.