Where is Nathan Matthews now, why did he murder his step-sister Becky Watts and what happened to his girlfriend Shauna Hoare?
NATHAN Matthews closed his eyes as he dismembered his step-sister's body with a circular saw after murdering her in a twisted kidnap plot.
The killer, who was given life behind bars, claimed in court he accidentally strangled Becky Watts to death when he tried to "teach her a lesson" by scaring her with girlfriend Shauna Hoare.
Who are Nathan Matthews and Shauna Hoare?
Takeaway delivery driver Nathan Matthews, son of Anjie Galsworthy, was brought up by his grandmother Margaret May and her husband Christopher.
He suffered pain, depression and anxiety from an early age after being diagnosed with a rheumatic condition called fibromyalgia.
He was in a relationship with quiet, but hard-working Shauna Hoare who cared for his disabled mum at the time of Becky's death.
She grew up in care as a child before moving back in with her birth mum Lisa Donovan who had seven other children.
Why did they kill Becky Watts?
The pair were hiding dark secrets behind their seemingly normal lives, sharing a warped sexual obsession with petite teenagers and threesome sex sessions.
In the weeks before Becky's death, Matthews and his girlfriend, who lived together in housing association terraced house in Bristol, had exchanged intimate messages about kidnapping girls.
On February 19, 2015, they went to Becky's home armed with a “kidnap kit” including handcuffs and two stun guns.
During the five-week trial at Bristol Crown Court, Nathan told the jury how he closed his eyes as he dismembered his step-sister's body with a circular saw.
He then put nine-stone Becky in a red suitcase to take back to his home, before offering a friend £10,000 to store items for him.
Despite all this, they ordered a takeaway, played a game of Monopoly and laughed over a parody song from Frozen called Do You Want to Hide a Body?
In November 2015, Matthews, was convicted of her murder and sentenced to life in prison with a minimum of 33 years.
He is locked up in Long Lartin Prison in Worcestershire where he was allegedly scalded with a jug of boiling butter by a fellow lag.
What happened to Shauna Hoare?
Hoare was found guilty of Becky's manslaughter and sentenced to 17 years in prison.
She is behind bars in the all-female Bronzefield Prison in Surrey.
The 23-year-old has reportedly been beaten so badly that she has had to be resuscitated twice.
In June 2016 the couple lost a bid to quash their combined sentences of 50 years for her murder.
Judges said they were satisfied there is "no reasonable argument" that the convictions were "unsafe or that the sentences were wrong".
