Killer and her mother joked on Facebook 10 days before murders

Kim Edwards and her mother Elizabeth Credit: Facebook

Just 10 days before Kim Edwards helped to murder her mother in Spalding in Lincolnshire, the pair had exchanged light-hearted messages on Facebook.

The conversation on the night of Sunday April 3, 2016, began after Elizabeth Edwards spotted that her daughter had posted a new profile picture of herself, showing her unsmiling in black-framed glasses and looking directly at the camera lens.

Other people, including family members, had commented on the post, saying how "beautiful" and "gorgeous" the teenager looked.

A few hours after the image first appeared, her mother said to her: "Where's your beautiful smile? x"

A minute later, her daughter replied: "It disappeared x."

Her mother asked: "Why hun? x", with Edwards replying: "I don't know x", with a series of emojis including a smiley face trailing after her comment.

Mrs Edwards then commented "I think it's under ur bed lol x," posted along with cartoon images of cute and cuddly cartoon animals pictured sleeping.