Justice Ian Nordheimer charged members of the jury Tuesday. The fate of the two accused of the murder of 15-year-old Jordan Manners is in the hands of the jury. (Alex Tavshunsky/CBC)In harsh remarks made to Ontario Superior Court Tuesday, Judge Ian Nordheimer called on the province's attorney general to review the testimony of two witnesses he said lied during the trial of two Toronto men accused of killing 15-year-old Jordan Manners.

"There are two girls who lied during the course of these proceedings. That undermines the trial process and poses serious ramifications for the two men on trial," Nordheimer said in the courtroom after he instructed the jury and they left to deliberate.

"In my view, the attorney general should conduct a full review of this matter. [It's] something that should be looked at and not simply ignored or forgotten."

Nordheimer was referring to the eyewitness testimonies of two teens at Manners's high school, C.W. Jefferys Collegiate, who initially told police they saw Manners in the moments before his death but gave different accounts in court.

"Justice Nordheimer is concerned that there has been perjury at the trial, and he wants that investigated," James Morton, former president of the Ontario Bar Association, told CBC News.

"Or perhaps he's concerned that there has been some element of witness intimidation. He's raising an issue, which has obviously given him considerable difficulty, and he wants it dealt with without, in any way, prejudicing this particular case."

The attorney general's office has said that it would not be appropriate to comment on the issue raised by Nordheimer while the case remains before the courts.

Jordan Manners, a Grade 9 student at C.W. Jefferys high school, was shot in the chest in a school stairwell in May 2007, according to the Crown. (CBC)Manners was found shot to death in May 2007 in the stairwell of his high school in Toronto's west end. Two men, said to be friends of Manners and identified only as J.W. and C.D. because they were 17 at the time, are charged with first-degree murder in the shooting.

In video statements made to police before the trial, three girls said they saw Manners come down the stairs with the two accused.

They described the situation in various ways. One said it looked as though he was being dragged, and the others described it as though he was being helped. Then they said they saw him fall to the bottom of the stairs.

One of the girls said she saw one of the accused rifle through Manners's pocket.

During the trial, none of the girls could identify the two accused.

In his earlier charge to the jury Tuesday, Nordheimer said that jurors would have to decide which of these accounts to believe. He told them that they needed to ask themselves why these stories changed and how the details provided changed.

The jury was still deliberating Tuesday evening.