Posthumus gets time served as accessory in slaying case

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A Bruce County woman who admitted to being an accessory after the fact in a fatal shooting in the Edmonton area was given time served and two years of probation Wednesday.


Sarah Jane Posthumus, 31, originally from Tara, had been charged with first-degree murder for the 2015 shooting death of Adrian Gregory, 30.

But Monday, Posthumus instead pleaded guilty to being an accessory after the fact in a manslaughter. Shane Terry Tym, who Posthumus was dating at the time of Gregory's death and who also faced a first-degree murder charge, pleaded guilty to manslaughter last Friday.

According to an agreed statement of facts, Posthumus, 31, had arranged to meet with Gregory to buy cocaine and pay him a debt. Unbeknownst to her, Tym, 30, brought a shotgun to the meeting in Sherwood Park. Tym shot Gregory in the head. His body was left in a Jeep, which was set on fire. Posthumus later consumed and sold some of the cocaine taken from Gregory.

The pair also each faced a charge of attempted murder for injuries to Jeremy Pershaw, who was with Gregory when he was shot. Tym pleaded guilty to aggravated assault, while Posthumus was found not guilty of both attempted murder and murder after admitting to the accessory charge.

Posthumus was in jail after her arrest from March 15 to May 19, 2015. Though she was sentenced to 90 days Wednesday, she was given enhanced credit for time already served and so will immediately begin probation. The sentence was proposed to the court as a joint submission between defence and the Crown.

One of Gregory's family members who attended the hearing Wednesday scoffed and walked out of the courtroom as defence lawyer Deborah Hatch described the "stress" her client lived under while facing the murder indictment.

Another wiped away tears as Crown prosecutor Alison McGill read into the record an email written by the victim's sister, Wendie Gregory. The message was submitted as a victim impact statement on behalf of Gregory's whole family.

"His loss in my life, my family's life, is agony," the sister wrote. "How can two people be so selfish?"

Gregory was a father of one boy, and had four nephews, court heard.

The family travelled to Edmonton from Ontario for the hearing.

The Crown argued Posthumus should be ordered to abstain from drugs and alcohol while on probation, but Hatch argued such orders have been found to be harmful to people trying to recover from addiction.

Hatch said Posthumus' entanglement in what happened to Gregory came about after a prescription for opioids became an addiction, which escalated to include cocaine and heroin. Posthumus is currently in a treatment program in Ontario.

While released awaiting trial, Posthumus was arrested and admitted to possession for the purpose of trafficking in relation to an illegal steroid operation in the home she shared with another man in Ontario, court heard. She was also charged with possession of oxycodone and methamphetamine.

Court of Queen's Bench Justice Kevin Feehan opted not to impose the abstinence order, ruling that such a requirement would undermine the rehabilitative purpose of probation.

Posthumus has a criminology degree, and has previously held a number of positions at organizations such as Big Brothers Big Sisters and in a probation office in Ontario. 



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