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16th June 2022
10:59am BST

Credit: Getty[/caption]
Then 22, Grantham ultimately decided to turn himself in, confessing "I killed my mother" not only in a statement to the police but in his private journals and a video message detailing how he "shot her in the back of the head", adding "in the moments after, she would have known it was me."
The video was played to the court and as well as excerpts from his journals which also contained details regarding the abandoned assassination plot.
Grantham was also reported to have hung a rosary from the piano and arranged lit candles around his mother's body before setting off for the Canadian PM's home. He drove as far as Hope, B.C. before turning around and planning to commit an act of mass violence at Simon Fraser University, where he studied, as well other locations - according to reports.
Ultimately, he turned himself into Vancouver police later that night and cited struggles at school, feelings of depression and paranoia; a cannabis problem, suicidal thoughts and, eventually, guilt over his mother his murder.
Pleading guilty to second-degree murder on March 9, 2022, the former actor is guaranteed a minimum 10 years in prison; the maximum period for this charge is 25 years but the crown court is asking for 17 to 18 years until he is eligible for parole.
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