The actress, who plays Lauren Branning in the soap, has admitted that she thinks her character could be responsible, though she’s also considered a number of other interesting theories.
Speaking on ‘Good Morning Britain’, Jacqueline said: “I think it could be Abi ot Peter, or maybe Lauren. The truth is I don’t know”.
Interestingly, Jacqueline also pitched her own idea, stating that she thinks Lucy’s death may be followed by a few more.
“I think it could be a serial killer, someone that came onto the Square quite recently,” she added.
Jacqueline has been struggling to cope with being kept in the dark about the plot and like viewers, she’ll have to wait until February 2015 to find out who’s responsible for the murder.
“I honestly can’t stop guessing who killed Lucy, it drives me crazy,” she said. “There are little hints that I’ve picked up on in the scripts but it changes every time I read different scripts.
“The script writers are about five steps ahead of me.”