Liam J. Stratton

When Sawa's mother and policeman father are found victims of a grisly double homicide, she begins a ruthless pursuit for the man who murdered them. With the help of her father's ex-partner, Karl Aker, and a mysterious friend from her past, she becomes a merciless teen assassin, blasting her way through the dark world of human trafficking only to uncover a devastating truth

Dr Ethan Winter, an analytical detective, partners with driven DI Lauren Bell. His deductive genius aids her murder squad, but he's haunted by an unsolved murder of someone close to him.