Murders of Nathan O'Brien, Kathryn Liknes, and Alvin Liknes

Background and Motive

The murders stemmed from a business dispute and a grudge held by Douglas Garland against Alvin Liknes. Garland was the brother-in-law of Alvin's son, Allen. Garland had prior criminal convictions. He was convicted for producing methamphetamine on the rural property where he lived with his parents. He also used the stolen identity of a teenager who died in a car crash in Cardston, Alberta, to evade law enforcement throughout the 1990s. In 2006 and 2007, Garland was hired by Alvin and Allen Liknes to perform electrical work on an industrial pump they were developing. Alvin Liknes was an inventor who held several patents. Garland slightly altered the pump design, believing he should be credited as a co-inventor. When Liknes disagreed and Garland was let go from the project in 2007, he developed a lasting resentment. When Garland learned in 2014 that the Likneses were planning to move, he decided to act. Police uncovered extensive internet searches on Garland's computer from 2013 and 2014, including queries on how to kill without emotion, force needed for concussion, most painful torture, and methods for disposing of a body using acid.

The Night of the Disappearance

On June 29, 2014, the Likneses hosted an estate sale at their home in the community of Parkhill. Their daughter, Jennifer O'Brien, visited with her sons, five-year-old Nathan and one-year-old Max. Nathan chose to have a sleepover with his grandparents instead of a planned trip to the zoo. Jennifer and Max initially stayed overnight, but when Max woke up crying, Jennifer decided to drive him back to her own home, leaving Nathan asleep in the front bedroom with his grandmother. Kathryn was in the front bedroom with Nathan, while Alvin slept in the master bedroom. Sometime between Jennifer's departure and her planned return the next morning, Douglas Garland arrived at the home. Evidence presented at trial indicated he used a drill to bypass the lock on a side door, a method he had researched online. He also disabled the home's internet router to hinder any potential security systems. A violent struggle ensued, leaving significant amounts of blood throughout the home. Bloodstain pattern analysis revealed large pools in the bedrooms, drag marks through blood on the floor, and hand marks on the walls. Police also found a small tooth, later identified as a child's tooth, in a hallway and a bloody dumbbell in the garage. There were no immediate signs of forced entry beyond the tampered side door.

Investigation and Evidence Collection

The investigation began on the morning of June 30 when Jennifer O'Brien arrived at her parents' house and discovered them and Nathan missing, with blood evidence throughout. She called police at 10:00 a.m. The first officer on scene, Constable Trevor Matthes, conducted a welfare check and documented the bloody scene. An Amber Alert for Nathan was issued at 5:15 p.m. that day, describing the disappearances as suspicious. The investigation, dubbed Operation Amber, quickly became one of the largest in Calgary history. It involved the Calgary Police Service, RCMP, Canada Border Services Agency, and Crime Stoppers. Key developments unfolded rapidly. On July 4, police released images from CCTV footage of a green Ford F-150 pickup truck seen in the area around the time of the disappearances. Alvin's son Allen and his wife recognized the truck as belonging to Douglas Garland, making him a prime suspect. On July 5, the RCMP executed a search warrant on the rural Airdrie property where Garland lived with his parents. Police also organized one of the largest ground searches in Calgary history around the Liknes home. The search of the Garland farm and the Liknes home yielded over 1,400 pieces of evidence, a record number for a Calgary court case. Disturbing items were catalogued from the property.

• A Tyvek suit, face masks, boots, and chemical gloves.
• Books about disposing of human bodies and lockpicking devices.
• Over fourteen pairs of handcuffs, whips, tasers, an assortment of knives, and a straitjacket.
• Eight pairs of women's shoes, two blonde wigs, and two mannequin heads with long blond hair.
• An adult diaper, prosthetic breasts, two baby soothers, and photos of adults in diapers on a hidden hard drive.
• A hacksaw and meat hooks with DNA matching the victims, and the shoes Garland was wearing when first arrested.
• Dental anesthetic and other weapons were also found.

Most critically, on July 1, aerial surveillance photos taken by Peregrine Aerial Surveys for the City of Airdrie showed three bodies, two adults and a small child, lying face down near an outbuilding on the Garland property. When flown over again the next day, the bodies were gone. Searches near a shed and fire pit revealed three blood stains in the grass and burned material containing 17 teeth, two thought to belong to a child, bone fragments, burnt flesh, jewellery, and buttons. A neighbour and paramedic, Donald Dikow, testified he smelled a heavy plastic burning smell from the property early on July 1.

Arrest and Initial Charges

Douglas Garland was initially taken into police custody for questioning on July 5 after his green Ford F-150 truck, matching the CCTV footage, was found and seized from his property. He was released but immediately charged with historical identity theft from the 1990s, where he had used the identity of a teenager who died in a car crash in Cardston to evade the law. This charge allowed police to hold him until he was granted bail on July 11 under the condition he would not return to the rural Airdrie property. The breakthrough leading to murder charges came on July 14. That day, Garland drove a rental car to his rural property. Police dispatched two vehicles and a HAWCS helicopter to intercept him. Officers found his car parked outside the property and, with aerial assistance, located Garland hiding in a thicket, arresting him at 1:25 a.m. Later that day, police announced they believed the three victims had been murdered, and the Amber Alert was lifted after 14 days. Garland was charged with two counts of first degree murder for the deaths of Alvin and Kathryn Liknes and one count of second degree murder for Nathan O'Brien. The charge for Nathan's murder was upgraded to first degree in May 2015 after further review by the court. Garland was held at the Calgary Remand Centre following his arrest.

Trial Proceedings and Arguments

The trial of Douglas Garland began on January 16, 2017, at the Calgary Courts Centre and concluded on February 16, 2017. Testimony was heard from 50 witnesses and the prosecution presented the 1,400 pieces of evidence. The Crown prosecution, led by Shane Parker and Vicki Faulkner, argued the killings were acts of domination planned over years due to Garland's grudge against Alvin Liknes. Crown prosecutor Parker stated that Garland's research intensified in March 2014 with dozens of searches related to weapons, torture, the Likneses' address, and how to pick the specific lock on their side door. The Crown's theory was that once Nathan witnessed the attack on his grandmother, he too had to be killed. They presented the aerial photographs from July 1 as evidence the victims were taken to the farm alive. They also showed CCTV footage from a nearby business showing Garland's truck with a large white object, possibly a tarp, in the bed around 5:15 a.m. on June 30. The defence, led by Kim Ross and Jim Lutz, did not call any witnesses. They argued the Crown had not proven Garland was ever inside the Liknes home, as no direct DNA, blood, saliva, hair, or skin evidence from Garland was found there. Defence lawyer Ross contended the white item in the truck was not covering the three victims, stating it was a fact that there were no bodies in that truck and those people did not leave that house alive. The defence emphasized Garland's right to the presumption of innocence and submitted that the Crown failed to prove he caused the deaths.

Verdict, Sentencing, and Aftermath

The jury deliberated for just over nine hours before returning a verdict of guilty on all three counts of first degree murder on February 16, 2017. First degree murder carries an automatic life sentence with no chance of parole for 25 years. The following morning, Justice David Gates presided over the sentencing hearing. After 10 of the 12 jurors recommended consecutive sentences, Justice Gates ordered Garland to serve 75 years before being eligible for parole. This sentence ensures he will spend the rest of his life in prison as he would need to live to 129 years old. Throughout the proceedings, Garland showed no visible emotion or remorse. Hours after his sentencing, he was assaulted by multiple inmates at the Calgary Remand Centre, sustaining soft tissue injuries that required hospital treatment. He was transported in stable, non-life-threatening condition. The trial revealed details the jury did not hear publicly, including a victim impact statement from Nathan's father, Rod O'Brien, who opposed the release of the aerial photo, fearing it would harm his surviving sons. He also noted the deep impact on Alvin's son, Jeff Liknes, who became more introverted after losing both parents. Garland was subsequently transferred to a federal penitentiary to begin serving his sentence.

Community Impact and Memorials

The case elicited an enormous outpouring of public grief and support in Calgary and across Canada. In the days following the disappearance, hundreds of volunteers joined ground searches for Nathan in parks and along the Bow River. The victims' employer, Cenovus Energy, sought to finance any potential ransom for the family's safe return. After Garland's arrest on July 14, hundreds of Calgarians released green balloons in tribute to the victims at a gathering in the community of Parkhill. A Green Ribbon campaign was started by a neighbour of the Likneses, with ribbons tied to trees and lampposts throughout the community. A silent auction fundraiser was held for Nathan's family on July 19. Vigils were held in Calgary and at the Alberta Legislature Building in Edmonton on July 23. The family held a private memorial at a Calgary church, attended by over 200 people. Nathan's parents, Rod and Jennifer O'Brien, established the Nathan O'Brien Children's Foundation to help disadvantaged children. In 2015, a fundraiser hockey game was held in Nathan's honour featuring the Calgary Hitmen at the Scotiabank Saddledome. The emotional toll on the surviving family was severe, with the family stating during the trial that hearing the gruesome details had been unbearable. The case is often cited alongside other high-profile Canadian child abduction cases such as the murder of Tori Stafford.

Forensic Significance and Legal Precedent

The investigation set several records and demonstrated the power of cumulative circumstantial evidence in a no-body homicide. Operation Amber's collection of over 1,400 evidentiary items was the largest for a single court case in Calgary police history. The forensic puzzle was complex, as the victims' bodies were never recovered. The Crown's theory, supported by evidence, was that Garland subdued the victims in their home, transported them to his farm, murdered them after likely extended torture, and then burned their remains in a fire pit to dispose of the evidence. The discovery of 17 teeth and bone fragments in the ash, alongside personal effects like jewellery and buttons, strongly supported this. The aerial photographs from July 1, though their public release was denied by Justice Gates to protect the family, were central visual evidence for the jury. The case also highlighted the use of digital evidence, with Garland's hard drive containing searches on how to butcher a human carcass for consumption and how to get rid of your friends. The 14-day Amber Alert remains one of the longest in Canadian history, and the community-led search was one of the most intensive in Calgary. The legal proceedings confirmed that a conviction for first degree murder can be secured without a body when supported by a strong chain of forensic and circumstantial evidence. The case is listed among notable murder convictions without a body.

Questions about Murders of Nathan O'Brien, Kathryn Liknes, and Alvin Liknes

Who was Douglas Garland and what was his connection to the victims?

Douglas Garland was the brother-in-law of Alvin Liknes's son, Allen. He had prior convictions for producing methamphetamine and for identity theft, having used the identity of a deceased teenager throughout the 1990s. He had a business relationship with Alvin and Allen Liknes in 2006 to 2007, performing electrical work on a pump invention. Garland believed he should have been credited as a co-inventor, and when Alvin Liknes disagreed and Garland was let go, he developed a deep grudge that motivated the murders years later.

Were the bodies of Nathan O'Brien and his grandparents ever found?

The bodies of Nathan O'Brien, Kathryn Liknes, and Alvin Liknes were never recovered. However, aerial imagery taken on July 1, 2014, showed three bodies on Douglas Garland's farm near Airdrie. Subsequent searches of a fire pit on the property recovered forensic evidence including 17 human teeth, two of which were thought to belong to a child, bone fragments, and pieces of burnt flesh. This material, along with burned jewellery and buttons matching items the victims wore, formed a key part of the evidence against Garland.

What was the sentence given to Douglas Garland?

Douglas Garland was sentenced to life imprisonment with no chance of parole for 75 years. As first degree murder carries an automatic life sentence, the judge had discretion only on the parole ineligibility period. After 10 of 12 jurors recommended consecutive sentences, Justice David Gates imposed the 75-year term. This means Garland would have to live to 129 years old to be eligible for parole, effectively a life sentence. He showed no remorse during sentencing.

How did the community respond to the murders?

The Calgary community responded with an immense outpouring of support. Hundreds of volunteers aided in ground searches in parks and along the Bow River. A Green Ribbon campaign was launched in the Parkhill community. After Garland's arrest, a public tribute saw hundreds release green balloons. Cenovus Energy, the employer of Nathan's parents, offered to finance any ransom. Vigils were held in Calgary and at the Alberta Legislature in Edmonton. The family held a private memorial attended by over 200 people. Nathan's parents founded the Nathan O'Brien Children's Foundation. A fundraiser hockey game was also held by the Calgary Hitmen in 2015 at the Scotiabank Saddledome.

What evidence was crucial in convicting Douglas Garland?

The conviction relied on a large body of circumstantial, digital, and forensic evidence. Crucial evidence included surveillance footage showing Garland's green Ford F-150 pickup truck near the Liknes home and later with a large white object in its bed. A hidden hard drive contained hundreds of incriminating internet searches from 2013 and 2014. Forensic analysis matched the DNA of all three victims to a hacksaw and meat hooks found on Garland's farm. Aerial photographs taken on July 1 showed three bodies on his property, which were gone by the next day. The police collected over 1,400 pieces of evidence, including weapons, restraint devices, and items related to body disposal. The discovery of 17 teeth and bone fragments in a fire pit was also critical.

Why was the Amber Alert in this case historically significant?

The Amber Alert issued for five-year-old Nathan O'Brien was historically significant as it became the longest running Amber Alert in Canadian history at the time. It was activated on June 30, 2014, and remained in effect for 14 days until it was lifted following Douglas Garland's arrest on July 14. The alert and the disturbing nature of the case prompted one of the most intensive ground searches in Calgary's history, involving multiple police agencies and hundreds of community volunteers. The massive public and police response showed the alert system's critical role in missing child cases.

Sources and further reading

• Murders of Nathan O'Brien, Kathryn Liknes, and Alvin Liknes (Wikipedia)
• Victims' family members say evidence at Douglas Garland ... (cbc.ca)
• Officers describe search for Nathan O'Brien on Day 3 of ... (vancouver.citynews.ca)
• Douglas Garland triple-murder case: what the jury didn't hear (globalnews.ca)

Checked by the Nosy Mag desk. Last updated 2026-11-01.