Chapz, I could ask you the same question about Frank's mum. I certainly don't buy into all this "She blames Frank for indirectly causing the death of her husband" nonsense. Sorry but in this instance I think you'll find blood is thicker than water. I have my reasons for believing it was Jenny (which I've mentioned on other threads). I think she was hiding in the factory when Carla confronted Frank on the stairs and overheard Frank's confession that he'd raped Carla and Jenny realized what a rat he was. She revealed herself after Carla had left and confronted Frank about the rape confession, a struggle ensued (perhaps even an attempt by Frank to rape her) he fell back down the stairs and smashed his head on the floor. Then, in a bid to frame Carla (because Carla had been the last one before her to see Frank alive) she smashed Carla's whisky bottle and dipped it in Frank's blood. My other reasons are this: Jenny did the dirty on Carla when she encouraged her to sell her share of the factory to Frank, so to me this is a bit of a loose thread, Jenny definitely needs to get her comeuppance and what better way than for her to turn out to be the murderer. Also, she's an expendable character, some may say "So is Frank's mum" but to me it's just weird how Jenny's character has suddenly been pushed into the shadows by the writers. Why? I can think of only one logical explanation for this.