A couple believed to be Britain's youngest double murderers can be named after a High Court ruling.
Lucas Markham and Kim Edwards, both 15, were convicted of murdering Edwards' mother and sister in Spalding, Lincolnshire, in April 2016.
Dinnerlady Elizabeth Edwards, 49, and daughter Katie, 13, were stabbed through the throat and smothered in their beds.
The teenagers, who were both 14 at the time, are thought to be Britain's youngest couple to ever be convicted of murder.
During their trial a court heard that after the killings they shared a bath, had sex and watched the vampire-themed Twilight films, Nottingham Crown Court heard.
Jurors heard the pair - described as being in a Bonnie and Clyde-like relationship - had planned the murders days before.
The girl told police it had started off as a joke but escalated into reality as she had "felt like murdering for quite a while".
In interview she said a gun would have been easier but "we don't really have any in this country" - so a knife was a better solution.
In police interviews and assessments with psychiatrists, the girl described the killings as "a breeze".
Afterwards Kim said Lucas "seemed fine".
She said the pair had planned to kill themselves by taking pills after the murders but changed their minds.
Both killers now face indefinite detention at Her Majesty's pleasure - the juvenile equivalent of a life term for an adult.