The motive in the case of murder this is the first thing that draws the attention of the police. No one except a madman commits murder for no reason. Passion, hatred, money as soon as the motive is established, it, as a rule, unmistakably points to someone. That is why Pender took the club with Sinclairs arm and walked with him part of the way to his house on Brook Street. A very normal phenomenon on the part of one of Sinclairs best friends. He was damn smart about that. No one knew, no one even had a ghost of suspicion of the deadly hatred he was experiencing. Everyone thought they were friends: even Sinclair himself thought so. Tomorrow it will be a little shock for him when he realizes the truth.