A body was found in the pipe.
Harry was working on Sunday. This is his turn to show up on the scene. It was thought of a OD at first.
Not Bosch. He put all the first crime scene data together and it does not sit right with him. So he pushed his way around, and got an autopsy on the next day.
He got in. Got his confirmation. It is not OD but a murder.
That's where the fun begins.
Now he dig further and found that his old comrade was a suspect on a heist.
Only 30% in. Progressing normally. A bit slow. This is Connelly earlier work. And he stick to a format that give you bits of information in a chronological orders. It is like watching TV series 24, that you would not know things that detective Bosch has not come to it yet.