Michael Parr and Nathan Mann charged with killing fellow inmate Mitchell Harrison in his cell at Frankland prison Two prisoners have appeared in court after a convicted child rapist was brutally killed in his cell. Michael Parr, 32, and Nathan Mann, 23, appeared at Peterlee magistrates court charged with the murder of Mitchell Harrison at HM Frankland prison in County Durham. The body of Harrison, 23, originally from Wolverhampton, was found by prison staff on Saturday morning. A postmortem examination found that he died from multiple injuries. Each man spoke only to answer his name during the brief hearing on Monday. They are charged jointly with murder. Neither entered a plea and the case was transferred to Newcastle crown court where the men will face a judge on Wednesday. They were remanded in custody. Harrison was serving an indeterminate sentence of at least four-and-a-half years after being convicted at Carlisle crown court in January last year of raping a 13-year-old girl. He was also put on the sex offenders register for life after the attack on the teenager at a property in Kendal, Cumbria, in 2009. Frankland is a category-A institution housing more than 800 inmates, including some of the most serious offenders in the prison system. Crime Prisons and probation guardian.co.uk © 2011 Guardian News and Media Limited or its affiliated companies. All rights reserved. | Use of this content is subject to our Terms & Conditions | More Feeds