Jack took a moment to process this. 'Melissa has been sleeping with Will Holmes?' he asked, as if he couldn't quite take it in.

Vivian nodded. 'Apparently she met him at a party. Alice said that at first she had just been doing it as a way to rebel against her parents-she knew that he and her father were enemies. But it's been turning into something more serious. She's been telling them she's going to see Alice almost every day, when she's actually been going to see him. My first thought was that maybe she'd run away with him.'

Jack shook his head. 'He's still around. And surely if she wanted to rebel against her parents she would want to tell them she was leaving home to be with him. Still, we should search his house anyway. He might have just been using their relationship to gain her trust, so he could use her to get to Mr. Richmond.'

'That would explain why there didn't seem to have been a struggle at the cottage, if she thought she was with someone she could trust,' Danny added.

'It looks like Mr. Holmes could be our man after all,' Jack sighed.

'Do you really think it's Holmes?' Samantha asked, walking into Jack's office a little later.

He cocked his head and looked at her. 'By the tone of your voice I'd say you don't.'

She sighed. 'It's just what you said about thinking he was telling the truth. And if he was sleeping with Melissa, wouldn't that be enough of a one up on her father, without doing anything else to her?'

Jack nodded. 'That's what I was thinking. But Holmes is our only lead. He's all we've got until we can find something else.'

Sam sighed and looked down.

'Are you alright?' Jack asked with concern.

'Yeah,' Sam nodded. 'It's just this job can be frustrating at times. If I only I could have said to this girl "it's not a good idea to get involved with a man that clearly has a vendetta against your father" then it would never have come to this.'

'I thought you didn't think it's Holmes,' Jack pointed out.

'But if it is...' Sam trailed off.

'I know it's hard,' Jack said sadly. 'But doesn't it make it all worth it when you see a family reunited, and it's thanks to you?'

Sam smiled. 'You're right.'

'You've just got to think about bringing this girl back to her parents. No what ifs.'

Jack smiled, and stroked Samantha's shoulder. It was meant to be comforting, but it made her feel something else, something that shouldn't be there.

'Thanks,' she said quickly, and walked out of the office.

Danny and Vivian were at Will Holmes house with a search warrant when he arrived home.

'What's going on?' he demanded. 'If this is about drugs again, I'm going to do you lot for harassment...'

'Actually this is about the disappearance of Melissa Richmond,' Vivian told him calmly. 'I'm Agent Johnson, this is Agent Taylor. We have a warrant to search your house.'

'Wait a minute, I've already been questioned about that,' Holmes said angrily. 'I told them I haven't got anything to do with this.'

'Well we have reason to believe you do,' Danny countered. 'We know you've been sleeping with her. What, was doing Paul Richmond's daughter not enough revenge for you, did you have to do her in as well?'

'Woah, woah, woah,' Will Holmes raised his hands. 'Those are harsh accusations. Maybe we should step into my study and talk about this rationally.'

Danny shook his head. 'Or maybe we should step into basement, maybe you've got Melissa tied up in there. Or maybe your attic, maybe that's where you've strung her up...'

'I didn't hurt her!' Will burst out. 'I love that girl. I wouldn't lay a finger on her!'

'You love her?' Danny asked in disbelief. 'That girl is seventeen! And the daughter of the man that you believe killed your wife, come to that. You're telling me that when you were with her, it wasn't to get one over on Paul Richmond?'

'I admit,' Will said, his hard-man exterior seeming to fade, 'at first...it was just to get at Paul. I know he killed her. I know you lot don't believe me, but there's no one else who would have wanted to harm my Sandy. She was beautiful, dignified but gentle. Everyone loved her. Including Richmond.

We were friends once, the best of friends. He and Sandy had a thing going on, until she met me. For her, her relationship with Paul wasn't serious, but with me it was love. She spilt up with Paul, but we kept our relationship from him because I knew it would cut him up. Until we wanted to get married. And I wanted Paul to be my best man. What an idiot I was.

Sandy went to talk to Paul, she said she didn't want us to lose our friendship because of her and she wanted to make it right. Next thing I know, she's found dead in a ditch. So you tell me that he didn't do it! You tell me you wouldn't want revenge!'

'You wanted revenge? So you killed his daughter?' Danny asked.

'No...no I meant by sleeping with her. I met her in my club, I didn't even know who she was. She was gorgeous, all over me. I didn't even realise she was so young, she looked much older than seventeen. We ended up sleeping together. I've had women since Sandy, but no one like Melissa, she was something special.

When I found out who she was, I felt sick. I had been entwined with the offspring of that man...I had felt her skin, smelt her hair. But then I started to think, what would happen if Paul knew? How I had made his precious little daughter moan? Maybe after all this time, I could repay him for some of my pain. He took my wife, so I took his daughters innocence.

I carried it on. At first, every time I touched her, it felt as good as if I were punching Richmond in the face. But when the day came when she wanted to tell her parents, I stopped her. I knew that if she told them, then it would be over. And I didn't want it to be. I realised that when I touched her, it didn't just feel good because I was getting at Paul. It just felt good. I fell in love with Melissa.'

Holmes looked at Danny and Vivian, pain and anguish in his eyes. 'So you can search my house. She's not there.'

'We'll do that Mr. Holmes,' Danny said, although his voice was not so harsh now.