Gwen: When I was about 5 or 6, my dad came home from work early. And I knew there was something wrong, I could hear voices from the kitchen. So I looked through the door and I could see him crying. Turned out money'd gone missing from work and he got the blame. So I went to get all my pocket money and I put it in his hand. Must have been about two pound fifty. He looked at me and said it wasn't about the money. He said "I can't stand anyone thinking I'm not an honest man," and I've always remembered that. Always. Because that was the first time in my life anybody had spoken to me like an adult. And then we went to the back garden and we played until dark. So that's my dad. Geraint Wynn Cooper, the nicest man in the world. And today's the day that I kill him.