‘Of course I don’t. It makes no sense at all. He had dementia, imagined all sorts of things. He never gave to charity his whole life, not a penny that I saw. Then, when he got really ill, when he knew he didn’t have much time left, he decided to change his will. He’d get upset, rant, would bang his head against the table or the wall, anything he could find. That’s why I’m challenging the will. He had no idea what he was doing when he cut me out of it.’

‘Did you discuss it with him?’

‘I tried. He just got really upset, said I had a good job and more than I already needed. Told me if I wanted extra I could work for it like he had. Said there were other people who needed it more. Then he got so upset, I had to let the subject go. I didn’t try again after that. He went downhill really fast and I knew that I could take the matter to the courts once he was gone.’

‘So you were just waiting for him to die?’ DC Monroe interjected.

‘It wasn’t like that,’ Andrew said quietly.

‘But you were angry with him,’ Graham said.

‘He was demented!’ Andrew Jenson stood up, leaning over the table, furious.

‘Except that he wasn’t. He had his solicitor and two independent witnesses for the amendments to his will, and they’d taken the precautions of getting a consultant psychiatrist to certify that at the time of making the changes he was of sound mind,’ Graham read from a statement in the file.

‘That’s ridiculous. Why would my father suddenly decide to leave that much money to a rape crisis centre?’

‘Perhaps something had happened to someone he loved?’ Monroe offered.

‘Yeah, and perhaps he’d watched five minutes of a documentary, got upset and managed to persuade the lawyer he was paying by the hour, and the psychiatrist he was also paying, to say what he wanted them to say. The symptoms of dementia aren’t always obvious. My father could seem lucid and then have no memory of the conversation he’d had five minutes later.’

‘All right,’ Graham said. ‘We can leave it there, but I’m urging you to tell us where you were during the period when your father was killed.’

‘Do you have evidence that my client was involved?’ the solicitor asked.

‘No,’ Graham replied honestly. ‘But our job is to investigate all possible suspects and it makes our job a lot easier when people are forthcoming. If you weren’t involved in any way, Mr Jenson, if you have an alibi for the hours in question, then the sooner you tell us everything, the sooner we can get on with finding the person responsible.’

Graham waited until Andrew Jenson and his solicitor had left the room before turning to Ava.

‘What do you think?’ he asked her.