And the actress hopes that her first two victims are Lauren's friend Lucy Beale and ex-boyfriend Jake Stone.Lucy is set to be killed of in the coming weeks and Jacqueline admits that the identity of her killer is a hot topic of discussion backstage, but she hope's it's her.
She said: "Everyone keeps saying I'm the favourite to kill Lucy but no one has a clue. She could turn into this raging murderer!"
And talking about Jamie Lomas' exit as Jake, she teased: "I don't know how he goes but I've got a little bit of an inking. Maybe Lauren will do him in, too!"
Jacqueline also revealed how the cast are taking bets on who the murderer is backstage.
Speaking to the Sun, she explained: "Everyone keeps asking each other and we are all putting bets on who we think it will be.
"I've been looking at all the scripts trying to get clues. But there are so many. But then you think, 'Oh no, it can't be them' so I've got no idea.
"The writers aren't letting anything out of the bag."
Could Jacqueline be onto something when it comes to Lauren being Lucy's killer? After all, she has previously revealed she's got a big storyline in the pipeline.
