Riverdale actor Ryan Grantham gets life 

Photo Credit: Google

The 24-year-old, who portrayed Jeffrey Augustine in the Riverdale teen drama,

Photo Credit: Google

The sentence was handed down on Wednesday at the British Columbia Supreme Court in Vancouver.

Photo Credit: Google

After being charged with first-degree murder, he pleaded guilty to second-degree murder.

Photo Credit: Google

Additionally, he allegedly planned to assassinate Canadian Prime Minister Justin Trudeau.

Photo Credit: Google

Court heard Grantham admitted to having shot his mother in the back

Photo Credit: Google

Head while she was practicing piano at her home north of Vancouver.

Photo Credit: Google

After the murder, the Canadian actor recorded a go-pro video of his mother's body, stating:

Photo Credit: Google

"I gave him a headshot from behind. He must have recognized me sooner when he realized it was me."

Photo Credit: Google