Noted Canadian actor Ryan Grantham was sentenced to life in prison, after pleading guilty to the 2020 murder of his mother; Barbara Waite.

The 24-year-old, who rose to fame for his portrayal of Jeffery Augustine’s character in the teen drama Riverdale, was sentenced at British Columbia Supreme Court in Vancouver on Wednesday (September 21).

It’s understood that Grantham pleaded guilty to the charge of second-degree murder, after having initially been charged with murder in the first degree.

It’s further understood, there was also a plot to assassinate the Canadian PM, Justin Trudeau, prosecutors argued.

It’s reported that Grantham admitted to shooting his mother in the back of the head as she played piano in their home, the court heard. As per BBC.

‘I killed my mother’ was the reported admission taken from his go pro video after the act. The video was said to show the actor saying; “I shot her in the back of the head. In the moments after, she would have known it was me.”

Reports further said that; indulging in alcohol and marijuana for hours following the murder, he allegedly loaded a car with three guns, ammunition and 12 Molotov cocktails with the intention to carry out his next act.

It was theorized that he was on way to the PM’s dwelling, as he had also had camping supplies and directions to Mr Trudeau’s Rideau Cottage residence.

The court is said to have also heard that the actor turned himself Into Vancouver authorities after aborting his suspected assassination plot, where he later admitted to his mother’s murder.

The Grantham, who also featured in the fantasy drama Supernatural, also starred in the 2010 film adaptation of the popular novel Diary of a Wimpy Kid.

Grantham has been in custody for the past two and a half years, law enforcement officials in Vancouver told Deadline, and has been participating in a mental health program since his arrest.

During the trial, his lawyers argued he had been struggling with anxiety and clinical depression and had expressed a desire to kill himself and harm others in the months leading up to him killing his mother.

He will not be eligible for parole for the first 14 years of his life sentence.