Showing L.A. Requiem by Robert Crais

A reckoning has come to the City of Angels...

Karen Garcia is missing and her father doesn't trust the cops - he wants
someone he knows on the case - so he enlists the help of Elvis Cole and
Joe Pike.

It seems that Karen is the latest victim of a distinctive serial killer and the
police are determined to pin her death, and four others, on the witness
who found her body. Cole doesn't believe the man has the guts to murder,
and with his partner and the police at each other's throats, it's down to him
to find the connection that will reveal the killer. But nailing the murderer
means choosing between the two people he cares most about...