The Forgotten Man by Robert Crais
In The Forgotten Man, Robert Crais delves deeper into the psyche of Elvis Cole when Elvis's father - or is he? - is found dead. The investigation Cole and Joe Pike embark on to find the man's identity forces Cole to wade deeper into the past he'd rather forget. Friendship, the kind we all long for in our lives and that Elvis has with Joe, is at the core of this suspense ride as it is in so many of Crais's novels.