Peer Khairi has admitted he killed his wife Randjida in 2008 by cutting her throat and stabbing her. But Khairi has pleaded not guilty to a charge of second-degree murder, claiming his state of mind is the real issue in the trial.
On Friday the court was shown a recording of a police interview with Khairi which was just hours after the stabbing.
Speaking in Dari, the Persian dialect spoken in his native Afghanistan, Khairi said, "I can't talk anything. I am not normal. My brain is not working."
The defence says exchanges like this show Khairi was suicidal when he called 911 to report his wife was dead.
But the Crown says Khairi was enraged with his wife and children: they dressed differently and were disobedient, disrespecting his version of a Muslim family.
Repeated attempts by police to have Khairi talk about what happened inside the family's apartment were unsuccessful.
"I saw her on the bed but I didn't know about her [being] dead," he says through an interpreter.
More than an hour into the more than three hour interview the tape abruptly stops because of a technical problem.
Detectives noticed the problem and made detailed notes.
According to Det. Michael Barsky those notes include Khairi's admission that he stabbed and slashed his wife with two knives.
Barsky says at no point during the interview did he have concerns about Khairi's state of mind.
He said "nothing Khairi did or said" led him to believe he had mental health problems.
The trial is scheduled to resume on Monday