It has been an emotional few days in a Calgary courtroom as the mother of the two children who were killed by their father recounted the horrific events of that day.
The crown has now wrapped up their part in the case.
Ying Tang continued her testimony on Friday. Under cross examination, she described her unhappiness in her marriage to James Louie. She told court that Louie appeared to have a split personality in the days leading up to the murder.
On Thursday, Tang told the court that she knew something was wrong on November 27, 2009. She said she called her estranged husband for hours asking to speak to her children.
Tang says she arrived home and the house was pitch black. When she went to her daughter's room she thought the little girl was sleeping. She touched her face and realized she was not.
She dialed 911 on her cell phone and within seconds James had a rope around her neck. She struggled and ended up on the bathroom floor, face down.
At that point, city police burst in and interrupted the altercation. They found 13-year-old, Jason and 9-year-old Jane dead in the home. Tang survived the terrifying ordeal and was taken to hospital.
Louie admits he killed his two children and tried to kill their mother. He has pleaded not guilty to the charges. The defence plans to argue that Louie's mental state made him not criminally responsible.
The defence will begin their case on Monday.
