Lawyers for five men accused of kidnapping university student Graham McMynn tested his memory of the eight-day ordeal on Monday, suggesting he might have used his girlfriend and news reports to help fill in some blanks.

McMynn, son of a wealthy Vancouver businessman, was grabbed from his car by gun-toting men on April 4, 2006, while he and girlfriend Jacqueline Tran were driving to the University of British Columbia.

He was blindfolded and bound for most of his captivity and testified last week that he never saw his kidnappers, though he was able to distinguish three of them by their voices.

He did interact with them, though, facing threats of death, getting meals and hearing details of the plot in conversations with a man he believed was the group's leader.

McMynn was rescued from a suburban Surrey basement apartment April 12, 2006. He told prosecutor Richard Cairns he was in a locked room when police raided the house, the last of three hideouts the kidnappers used.

"I was sleeping and I believe what woke me up was a flash-bang (stun grenade)," he testified as Cairns wrapped up his direct examination.

Police were yelling for people to get down, he said, then an officer broke through the door of his room.

"He pointed a gun at me and yelled 'get down,"' said McMynn. "I think I was yelling 'I'm Graham McMynn,' but I still got told to lie down and put my hands on the wall and stay there."

McMynn, now 24, said he was not blindfolded at the Surrey house but ordered to pull a cloth over his head before anyone came into the room.

He spent most of his captivity with his head wrapped in duct tape, sometimes with a tuque taped over his head as well. He said he could only see a little through the bottom gap in the blindfold.

Defence lawyer Lyndsey Smith, who represents accused Jose Hernandez, questioned McMynn's ability to tell the kidnappers apart by their voices.

McMynn earlier testified that one of them had a Chinese accent, which he later decided was Vietnamese. Another had a high-pitched voice and an accent, but not what he thought was an Asian accent.

The lawyer for accused Joshua Ponicappo, Dimitri Kontou, probed McMynn's recollections, including an incident the day before the kidnapping, when McMynn avoided a suspicious car that raced up behind he and Tran.

McMynn agreed he didn't consider the incident unusual until he talked to Tran after his rescue.

He didn't mention it in two police statements made the day he was freed, nor a follow-up e-mail to police a day later.

It first came up when Crown prosecutors interviewed him in November 2007, more than a year after the kidnapping.

"I didn't associate the two at all when I talked to police," he said. "She (Tran) reminded me that that had happened, that it was the same people."

McMynn testified earlier that the two men who approached the car were both armed with handguns. But he told police he only saw one gun in the hands of a white man with a red hat who approached the driver's side of his Volkswagen Golf.

Kontou suggested Tran told him about the second gun.

In their interviews with McMynn, police investigators at one point said they were worried his evidence would be tainted by his discussions with Tran, Kontou suggested.

Talking with police, McMynn also referred to news articles and television reports about the kidnapping. Kontou suggested some of the information in those stories had crept into his evidence.

But McMynn said the references in some cases were to refute details in news reports, such as him being given sushi to eat.

McMynn admitted his mind was unsettled in the initial stages of the kidnapping and he may not have noted details about his abductors and surroundings.

But he was firm when Kontou suggested he may have been confused about the race of the gun-toting man in the red cap who came up to his car door.

"The person that came to my side was white," he said.

However, McMynn could not say that was the same person referred to as "white boy" within the kidnap group, a suspect scolded for breaking some unidentified item in one of the hideouts.

Along with Hernandez and Ponicappo, Anh The Nguyen, Van Van Vu and Sam Taun Vu are being tried in B.C. Supreme Court on one count each of kidnapping and unlawful confinement. All were between 19 and 22 years old when they were arrested.