The Twighlight Killers

Kim Edwards and Lucas Markham - known as the “Twighlight killers”- sent shock across the town of Lincolnshire, England, in 2016 when the 14-year-old girlfriend/boyfriend pair brutally murdered her mother and sister.

Elizabeth and Katie slept soundly in their beds on the night Lucas savagely stabbed them, a violent crime the pair had planned for weeks inside the very homes they would later carry out the acts.

Kim and Lucas dated for about 10 months when the murder occurred. Suicide ideation attracted the pair to one another.

An argument in 2008 led to Elizabeth physically striking Kim. She called Child Protective Services to report the incident herself, leading to the removal of the kids from the home for a very temporary time. The kids soon returned and life resumed normalcy, at least for a while.

Kim Resented Her Mother

Kim never got over that day. She told her psychiatrist, “I wanted to get revenge for the way she treated me. I did not feel anything for my mother. She deserved it and I’m glad she’s dead.”

She did everything she could to show her mother how much she despised her. She threatened to run away and called support workers claiming her mother threatened her. She wrote a suicide note, which concerned her mom enough to call for an emergency psychiatric assessment. The assessment showed no signs of mental illness.

The two often argued and Kim claims her mom said that she would turn out like her father, a man who abandoned them when she was an infant. When Kim and Lucas began dating, the hostility toward her mom only got worse.

Kim and Lucas ran away at one point. Elizabeth disproved of the two dating and often saw that things were askew between them. She described their relationship as “a ticking timebonb waiting to go off.”

In March 2016, Kim attempted to kill herself by overdosing on painkillers. It was after this incident that she and Lucas began planning the murders.

The Murders

On that April night, Kim let Lucas in through the bathroom window, then walked him to her mom’s bedroom. Lucas held a pillow over the sleeping woman’s face as he repeatedly stabbed her in the neck.

Elizabeth fought for her life and died a slow, painful death.

Once he killed Elizabeth, Lucas walked into Katie’s room and stabbed her to death as she slept.

Kim said after her arrest:

'I thought it would have been better for my sister to die too,' Kim later explained. 'I was not killing my sister out of anger, and I miss her, but I was excited about killing my mother and I was looking forward to it.'

After the murders, Kim and Lucas had sex on the sofa in the living room and watched Twighlight as they shared a bowl of ice cream. For the next day and a half, the two cuddled one another inside the house with the dead bodies upstairs.

School staff called the police when Kim and Lucas failed to show up for school, prompting police to find the gruesome discovery at the home.

Lucas, Kim Arrested

Lucas and Kim were arrested. She told detectives she didn’t hate her sister but killed her only so she did not have to experience the pain of losing her mother.

Criminologist David Wilson described the pair as demonstrating a “high level of psychopathy.” They were found guilty and are now serving 17 ½ years in prison.

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