54 It seemed to take an age for Dexter to answer his phone, but in reality it was only a few seconds. ‘Dex, I know who it is. I know who killed Roger and Arthur Clifton.’ Dexter was silent for a moment. ‘Right… Who?’ ‘Howard Smallwood. And no, it’s not another one of my wild theories. It all makes perfect sense.’ ‘Smallwood? The history guy?’ ‘Yes. He was on CCTV using his laptop in the library around the time that email was sent to Roger Clifton. He knew all about the history of the area and what had happened. Of course he did. It’s literally what he does. He was at the scene that morning, too, remember? The first time we met him, he stopped us as we came out of the Waterside Cafe. He knew we were police officers and he couldn’t help but give us his two cents. He’s been toying with

