For the fifth time, a judge has adjourned the case of two prisoners charged with assaulting Dennis Oland last summer at the Renous prison, where he was sent after being convicted of murder.

Convicted murderer Cody Alexander Muise, 27, and Aaron Marriott, 26, in prison for attempted murder, appeared in Miramichi provincial court Thursday afternoon to enter pleas.

They are accused of assaulting Oland at the Atlantic Institution in Renous on July 31, while he was serving a life sentence in the 2011 murder of his father, Saint John multimillionaire Richard Oland.

Oland was later released from prison later, after the New Brunswick Court of Appeal quashed the verdict and ordered a new trial.

The prison assault case had already been adjourned four times. During the men's last court appearance, on April 27, Marriott's lawyer requested more time to review the disclosure material – the Crown's information in the case. Muise's lawyer asked to have the matter put off with Marriott's.

On Thursday, Marriot's lawyer continued to ask for more time. He said his client had received a copy of his file and a DVD but was unable to view the DVD.

Muise's lawyer also asked for more time. He had not asked for a copy of the DVD but said he would try to make arrangements to see it.

Judge Denis Lordon initially said the case needed to move along but then granted the additional time.

He adjourned the case until July 22 at 1:30 p.m.

No details about the alleged assault were released.

Because it occurred at a maximum security prison, the Crown is proceeding by way of indictment, rather than the lesser summary offence of assault. If convicted, each man would face a maximum sentence of five years in prison.

Muise is serving a life sentence for first-degree murder in a 2010 shooting death in Spryfield, N.S.

Marriott is serving a 15-year sentence for attempted murder in connection with a shooting outside the IWK children's hospital in Halifax in 2008.