'Did you find anything else out?' Jack asked Sam on their way back to the office.

'I've got Alice Westwood's address,' she told him. 'But apart from that, nothing. No diary or anything. What did Mr. Richmond tell you?'

Jack shook his head. 'I just got a feeling there was something he wasn't telling me. He seemed to dismiss the idea that it had anything to do with this Will Holmes, he seemed to think she'd just gone off with a boy from school.'

Sam frowned. 'But Joanne said that Melissa never even mentioned any male friends. And from her description of her daughter, that doesn't sound like something she'd do.'

'Well from the sounds of it,' Jack told her, 'Paul Richmond seemed to think their daughter wasn't the perfect girl her mother thought she was. It sounded like he thought she was keeping something from them.'

'Like what?' Sam asked.

'Now that I don't know,' Jack said. 'But Mr. Richmond seemed to think that Melissa's friend Alice would.'

Jack was going over his conversation with Mr and Mrs Richmond in his head. Something about it just made him feel uneasy. He had sent Vivian to talk to Alice Westwood, Danny and Martin had gone out to the cottage where they last knew Melissa to have been, and Sam was looking finding out what she could about Will Holmes, and Paul Richmond after what they had heard him say about "digging up the past".

Jack was thinking for some while, when Sam walked into his office.

'We need to get in Will Holmes.'

'Woah, slow down,' Jack said. 'What have you found out?'

'Paul Richmond and Will Holmes both own Casinos. There's real rivalry between these guys. There's been more than one incident of punch up's between Richmond's and Holmes' employees. But that's not all. Richmond's never gone down for anything, hasn't even got so much as a parking ticket. But twenty years ago he was a suspect in a murder investigation. The murder of Will Holmes' wife. If that's not a motive, then what is?'

'Wait a minute,' Jack said calmly. 'You said he was a suspect, but he wasn't actually charged?'

'Insufficient evidence or something,' Sam said. 'But what if Will Holmes thought that Paul Richmond did do it, and he's been waiting all this time to get his revenge?'

'You could be right,' Jack nodded. 'Let's talk to this guy.'

It wasn't long before Jack and Sam were sitting opposite Will Holmes in the interview room.

'So what can I do for you?' Will asked. He was an even bigger man that Paul Richmond, and had dark, slicked back hair, and a very stereotypical gangster appearance.

'We're here about the disappearance of Melissa Richmond,' Sam said assertively, before Jack could say anything.

'Melissa Richmond,' Will said slowly. 'And why would you think her disappearance had anything to do with me?'

'Well it seems that you and Paul Richmond have quite a history,' Jack said, folding his arms and leaning closer. 'So I think it's perfectly reasonable for us to suspect this has everything to do with you?'

'I'm just an honest business man. You might want to give me another call when you have a scrap of evidence against me,' Will challenged.

'But we have a motive,' Sam countered. 'You accused Paul Richmond of killing your wife. Did you think that because the law couldn't punish him for it, you'd do it yourself?'

Will took a deep, calming breath. 'That man killed my wife twenty years ago. Why would I wait until now to pay him back?'

'I think you're a smart man Mr. Holmes. You knew that if you tried anything straight away, the finger would be pointed at you. So you waited, biding your time, planning the perfect way to get your revenge,' Sam suggested.

Will's previously calm face started to go red as he clenched his jaw. 'Yes I accused him of killing my wife. Because he did it. You lot couldn't prove it, but I know the truth. He was jealous...insanely jealous because she loved him and not me. So he took from me the one person I've ever really loved...'

He stopped and took another breath. 'He killed my wife. I do want him punished, and I can sleep soundly at night because I know that one day he will be, not by you lot, and not by me either, but he'll get his karma.'

'Well it looks like you're right about that Mr. Holmes, it looks like Mr. Richmond is getting "his karma".' Jack got to his feet. 'You can go. But next time I'd bring my lawyer.'

'Do you believe him?' Sam asked after Holmes had left.

'Well despite the fact that we have no other leads, and he is a very obvious suspect, for some reason I think he was telling the truth,' Jack sighed. 'We'll have to see what the others have dug up when we get back.'

When they did get back, Vivian was still out talking to Alice, but Danny and Martin were back from the cottage.

'We didn't find much,' Danny told them. 'Her bed's been slept in, no signs of a struggle. Her car's in the driveway. It's like she just vanished.'

'Well we found out something interesting,' Sam told them, and filled them in on their conversation with Will Holmes.

'Paul Richmond killed his wife?' Martin asked in disbelief.

'Well he seems to think so,' Sam said.

'Seems like Holmes could be our man,' Danny concluded.

'Quite possibly,' Jack nodded. 'But we shouldn't make any assumptions.'

'Hey guys!' It was Vivian, just then walking into the office. 'I've got something important.'

She took a moment to take off her coat, and then explained to them exactly what she'd discovered.

'I went to talk to Alice Westwood. At first she didn't give me anything that we didn't already have, no boyfriend, a few close friends. But I could tell there was something she was keeping to herself, so I told her that any information would be vital in tracing Melissa's whereabouts. She said she was worried about getting Melissa into trouble, I told her that Melissa was already ready in a lot of trouble and anything she could tell us would help us get her out of it. So she told me. Melissa has been sleeping with Will Holmes.'