40
The truth is I need the police. But I can’t trust them. They’re two very different things.
The moment I saw Gavin Armitage’s photo, I knew what I had to do. I couldn’t risk McKenna speaking to him. There’s no way he’ll have left a single grain of evidence that they can use. He’s too smart for that. And when the police are investigating one of their own I’m sure you need one hell of a lot of grains.
If I’d told McKenna that the fourth photo was the man I knew as Gavin Armitage, she’d have to go and speak to him. Interview him, perhaps under caution. Then he’d know that I know. He’d know his identity had been compromised. And then what? There’s nothing that can convict him. Even if he didn’t have an alibi for the Friday morning or Saturday afternoon, so what? Neither do I. Our alibis a
