Resurrection Bay (Caleb Zelic #2) by Emma Viskic

CALEB ZELIC, profoundly deaf since early childhood, has always lived on the outside - watching, picking up tell-tale signs people hide in a smile, a cough, a kiss. When a childhood friend is murdered, a sense of guilt and a determination to prove his own innocence sends Caleb on a hunt for the killer. But he can't do it alone. Caleb and his troubled friend Frankie, an ex-cop, start with one clue: Scott, the last word the murder victim texted to Caleb. But Scott is always one step ahead. As Caleb delves deeper into the investigation he uncovers unwelcome truths about his murdered friend - and himself.