[2] Both Matthews and Hoare were also convicted of conspiracy to kidnap, preventing the lawful burial of a body, perverting the course of justice and possession of two stun guns.

[3][4] Becky Watts was last seen at home in St George, Bristol, on the morning of 19 February 2015 by her step-mother Anjie Galsworthy, a multiple sclerosis sufferer, who left the house at around 11:15 A.M for a hospital appointment.

[6] Initial inquiries focused on the belief that Watts had disappeared after leaving the family home, based on statements given by her step-brother Nathan Matthews and his girlfriend Shauna Hoare, who were at the house at the time.

[16] Watts' funeral took place at St Ambrose Church in Whitehall, Bristol, on 17 April 2015 and was described by her family as "an occasion to celebrate Becky's life".

[18] According to the prosecution, after the killing, Matthews and Hoare put Watts's body into the boot of their car and stayed at the house for several more hours, during which time other family members arrived home.

He instead admitted manslaughter, telling the court that he had tried to kidnap his step-sister as a way of scaring her into changing what he perceived as her bad behaviour, but the plan went wrong and he accidentally killed her.

[23] The prosecution claimed that the text messages between the two, as well as other content found at their home, suggested "a shared unnatural interest in attractive teenage females".

[22] DNA linked both Matthews and Hoare to items that were found in the shed alongside the remains,[24] and an expert was called to give evidence who said it would be "easier" to carry out the dismemberment if more than one person was involved.

[3] Two men, James Ireland and Donovan Demetrius, were cleared of assisting an offender, which related to the moving and storing of packages containing Watts's remains.

[2] Demetrius's brother Karl and his girlfriend Jaydene Parsons, who owned the shed where the remains were stored, had admitted the same charge at an earlier pre-trial hearing, though both insisted they did not know the true contents of the packages.

In March 2016, Watts's father, Darren Galsworthy, released a memoir which described his daughter's life, her murder and the subsequent criminal trial of those responsible.