Nathan Matthews has been jailed for life with a minimum of 33 years for killing his stepsister Becky Watts.
Matthews, 28, was found guilty of murdering the 16-year-old in a sexually motivated plot before dismembering her body in the bath.
His girlfriend Shauna Hoare, who was found guilty of manslaughter, was jailed for 17 years.
Nathan Matthews and Shauna Hoare will be sentenced on Friday over the murder of Bristol teenager Becky Watts.
Matthews, 28, was found guilty of murdering Becky, his 16-year-old step-sister, during a "violent struggle" after the couple's plans to kidnap her went wrong.
He subsequently stabbed her 15 times after her death before later dismembering her and hiding her body parts in a suitcase in a neighbours shed.
Hoare, 21, was acquitted of murder but convicted of manslaughter following a trial over the sexually motivated attack.
Over the course of the proceedings, Bristol Crown Court heard that the pair had a "deep-rooted hatred" for Becky and shared "twisted sexual desires" about petite teenage girls.
Speaking following their conviction, Becky's family paid tribute to a "loyal, loving, smiley, fiesty and caring" girl.
Later, Becky's father Darren Galsworthy - sat alongside his wife, Matthews' mother Angie-Mae Galsworthy - told ITV's Good Morning Britain the killers had "no right to walk God's green earth".
Nathan Matthews has been jailed for a minimum of 33 years for dismembering and murdering his stepsister Becky Watts.
The mother of murdered teenager Becky Watts reduced many in court to tears with a powerful victim impact statement.
Becky Watts' killers have "no right to walk God's green earth", her father has told Good Morning Britain.