A police investigation found Antoine strangled Gargol to death with a belt she was seen wearing in a photo the two took together on the same evening. "Hope you made it home safe", Antoine had posted on her victim's Facebook wall after the killing.
A passerby discovered 18-year-old Gargol strangled to death on the side of the road near a landfill in Saskatoon in March 2015.
A photo of Gargol and Antoine - her best friend - had been posted to Facebook six hour before the body was discovered.
After police could find no evidence to corroborate Antoine's story, they became suspicious, but had virtually no leads for two years, having been sent on a wild goose chase by Antoine. Another break came when a tip led police to a friend of Antoine's, who told detectives that a panicked Antoine showed up at her house the night of the murder.
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She said she could not remember what sparked the argument she had with Gargol and mourned the loss of her friend.
The court heard that Antoine had been abused in care for a long time, and had recently reported abuse by her foster parents.
Watson said her client acknowledged the problems she's had, noting Antoine has already applied for several addiction assistance programs and is working on a high school diploma. Antoine later told investigators that she and Gargol partied with two men, who allegedly strangled the victim and put a gun to her head to help them. The best friend was sentenced seven years for murder.
'Nothing I say or do will ever bring her back. Before Antoine was sentenced, Gargol's aunt gave a victim impact statement to the court. I am very, very sorry ...
Police had all they needed to mount a case. "It shouldn't have ever happened", she said adding that she had no way to explain why she did it.
By the time she was 12, Antoine began racking up a criminal record - starting with stealing her foster parents' auto on multiple occasions in attempts to run away.