The jury has been sent out to reach a verdict in the Risley murder trial.

The eight women and four men retired at 12.54pm today.

Aaron Gordon, 24, and Marcus Nelson, 30, both from Wolverhampton are charged with the murder of Patrick Butler, aged 41, also from Wolverhampton.

UPDATE FROM FINAL DAYS EVIDENCE

A SECOND prisoner accused of a murder at HMP Risley has placed the blame on members of a drug gang - but refused to name them.

Aaron Gordon alleges it wasn't him or cousin Marcus Nelson who carried out the attack - but criminals who ran the prison.

He has told his trial at Chester Crown Court on Friday that he cannot name them because he will be killed.

The 24-year-old said the prison was ran by criminals from Liverpool and Manchester who were in charge of "all the illegal contrabrand - phones, drugs, anything illegal."

He said he saw three men from a gang have a row with 41-year-old victim Patrick Butler on the morning of the attack in 2005, then two of them later burst into Nelson's cell and attacked Mr Butler.

Gordon said Butler owed the men mobile phone credit in exchange for drugs.

He said: "It was like some kind of shark attack, it just happened so quick."

The victim and defendants are all from Wolverhampton. Gordon first met Butler at a party in 2000.

The prosecution have alleged Nelson and Gordon dealt drugs in prison, and have suggested Butler may have been killed over a debt.

The court heard Gordon previous convictions include actual bodily harm, four robberies, handing stolen goods, false imprisonment, possessing, of a firearm, possession of a blank firing pistol and possession of amphetamine.

The case continues.

Marcus Nelson was cross-examined on Friday about key DNA evidence.

The prosecution say he was seen wearing blue denim jeans that were found splattered with Patrick Butler's blood.

The 30-year-old said they were folded up in his cell at the time, and the blood got on to them from alleged the attack by the drugs gang.

But DNA expert found Mr Butler's blood on parts of the jeans that police photos revealed would have been covered up by the way they were folded.

Robin Spencer CQ, prosecuting, said: "If you weren't wearing them, how did that blood get to be on the inside part of the jeans?"

Marcus Nelson said: "I can't explain that."

Mr Spencer QC: "Because you have been caught out in a lie, haven't you?"

Mr Nelson: "No, not all."