Deadly Edge — Richard Stark

It had taken four men to crash the rock concert and a few minutes to split the receipts and hit the crossroads. Parker headed northeast with a bulging suitcase and an itching for the broad who was waiting for him. That should have been an end. He found Keegan nailed to a wall, his share gone, and a few heroin wrappers stuck to the floor.

Briley and Morris were next -- which left Parker.