The family of a man who was murdered while serving an indefinite sentence in prison say they have been left 'shattered' by his death.
Mitchell Harrison was an inmate at HMP Frankland when he was attacked and killed in his cell in October 2011.
Today Michael Andrew Parr, 32, and Nathan Mann, 23 were sentenced to life in prison after being found guilty of the murder.
Harrison was found dead in his cell after being attacked by Parr and Mann, who used make-shift tools fabricated from toothbrushes and razor blades. He had been disembowelled.
The Prisons and Probation Ombudsman will carry out an investigation into circumstances surrounding his death.
Two men have been sentenced to life in prison after admitting the murder of a fellow inmate.
Michael Andrew Parr, 32, and Nathan Mann, 23, admitted killing Mitchell Harrison at MHP Frankland in October 2011. They appeared at Newcastle Crown Court for sentencing today.
Harrison, originally from Wolverhampton, was found disembowelled in his cell. He was serving an indefinite sentence at the prison - which houses some of the UK's most high profile and dangerous prisoners - for the rape of a 13 year old girl in Kendal, Cumbria in 2009.
A prisoner who admitted disembowelling a convicted child rapist in his top security jail cell in Durham will be sentenced.
Michael Parr killed Mitchell Harrison, who was serving an indefinite sentence at Frankland Prison for the rape of a 13-year-old girl.
Harrison was disembowelled in his cell at the category A facility, which has housed some of the UK's most high profile and dangerous inmates, in October last year.
Parr, 32, will be sentenced at Newcastle Crown Court by Mr Justice Openshaw.
A plea hearing will be held at the same court for Parr's co-accused Nathan Mann, 23.
Harrison, originally from Wolverhampton, was jailed in January 2010 after he admitted raping the girl.
He was 21 at the time of the attack, which took place in August 2009 in Kendal, Cumbria.
Mitchell admitted two counts of rape at Carlisle Crown Court, where he received an indeterminate sentence and was put on the sex offenders' register for life.