WARNING: This article contains graphic content that some readers might find disturbing.
Story continues below advertisement
The lock on the side door of the Liknes home had been tampered with and disabled, according to testimony Thursday from a master locksmith.
Douglas Garland, 56, is charged with three counts of first-degree murder for the deaths of five-year-old Nathan O’Brien and his grandparents, Alvin and Kathy Liknes. He pleaded not guilty on all counts.
Nathan, Alvin and Kathy were last seen alive June 29, 2014.
FILE: The exterior of the Calgary Courts Centre in downtown Calgary.
Global News
Story continues below advertisement
Expert locksmith Monte Salway testified Thursday in day four of the Garland triple murder trial.
Salway said it would have taken just a few minutes to drill through and disable the lock.
Salway has been a locksmith for nearly 30 years and is a certified instructor with the Associated Locksmiths of America.
He said he examined the Liknes lock for police.
In the Crown’s opening statement, prosecution alleged Garland researched the Schlage BE365 lock–the one the Likneses had on their side door– just days before they disappeared.
“The cylinder has obviously been turned,” Salway said when shown a photo in court of the lock.
He noted two holes had been drilled in the lock, exposing the pins allowing the lock to be manipulated.
Story continues below advertisement
Salway said the Liknes lock no longer worked and it had been disabled.
Defence lawyer Jim Lutz asked Salway how long it would have taken someone to break through the lock.
“It is a minute to a five minute job,” Salway said.
The prosecution told the jury Monday the Crown theory is that Garland was an obsessive and methodical planner who deliberately killed Nathan, Alvin and Kathy.
It’s alleged he took the three victims to his farm and then dismembered and destroyed their bodies.
WARNING: The photo gallery below contains graphic content that some readers might find disturbing.
1/15
Police photos taken at the Liknes home after Alvin and Kathy Liknes disappeared along with their grandson, Nathan O'Brien, on June 30, 2014.
Photo credit: Calgary Police Forensic Crime Scenes Unit
View full screen
2/15
Police photos taken at the Liknes home after Alvin and Kathy Liknes disappeared along with their grandson, Nathan O'Brien, on June 30, 2014.
Photo credit: Calgary Police Forensic Crime Scenes Unit
View full screen
3/15
Police photos taken at the Liknes home after Alvin and Kathy Liknes disappeared along with their grandson, Nathan O'Brien, on June 30, 2014.
Photo credit: Calgary Police Forensic Crime Scenes Unit
View full screen
4/15
Police photos taken at the Liknes home after Alvin and Kathy Liknes disappeared along with their grandson, Nathan O'Brien, on June 30, 2014.
Photo credit: Calgary Police Forensic Crime Scenes Unit
View full screen
5/15
Police photos taken at the Liknes home after Alvin and Kathy Liknes disappeared along with their grandson, Nathan O'Brien, on June 30, 2014.
Photo credit: Calgary Police Forensic Crime Scenes Unit
View full screen
6/15
Police photos taken at the Liknes home after Alvin and Kathy Liknes disappeared along with their grandson, Nathan O'Brien, on June 30, 2014.
Photo credit: Calgary Police Forensic Crime Scenes Unit
View full screen
7/15
Police photos taken at the Liknes home after Alvin and Kathy Liknes disappeared along with their grandson, Nathan O'Brien, on June 30, 2014.
Photo credit: Calgary Police Forensic Crime Scenes Unit
View full screen
8/15
Police photos taken at the Liknes home after Alvin and Kathy Liknes disappeared along with their grandson, Nathan O'Brien, on June 30, 2014.
Photo credit: Calgary Police Forensic Crime Scenes Unit
View full screen
9/15
Police photos taken at the Liknes home after Alvin and Kathy Liknes disappeared along with their grandson, Nathan O'Brien, on June 30, 2014.
Photo credit: Calgary Police Forensic Crime Scenes Unit
View full screen
10/15
Police photos taken at the Liknes home after Alvin and Kathy Liknes disappeared along with their grandson, Nathan O'Brien, on June 30, 2014.
Photo credit: Calgary Police Forensic Crime Scenes Unit
View full screen
11/15
Police photos taken at the Liknes home after Alvin and Kathy Liknes disappeared along with their grandson, Nathan O'Brien, on June 30, 2014.
Photo credit: Calgary Police Forensic Crime Scenes Unit
View full screen
12/15
Police photos taken at the Liknes home after Alvin and Kathy Liknes disappeared along with their grandson, Nathan O'Brien, on June 30, 2014.
Photo credit: Calgary Police Forensic Crime Scenes Unit
View full screen
13/15
Police photos taken at the Liknes home after Alvin and Kathy Liknes disappeared along with their grandson, Nathan O'Brien, on June 30, 2014.
Photo credit: Calgary Police Forensic Crime Scenes Unit
View full screen
14/15
Police photos taken at the Liknes home after Alvin and Kathy Liknes disappeared along with their grandson, Nathan O'Brien, on June 30, 2014.
Photo credit: Calgary Police Forensic Crime Scenes Unit
View full screen
15/15
Police photos taken at the Liknes home after Alvin and Kathy Liknes disappeared along with their grandson, Nathan O'Brien, on June 30, 2014.
Photo credit: Calgary Police Forensic Crime Scenes Unit
View full screen
On Friday, an expert in footwear/footprints is expected to testify, as well as a homicide detective who was involved with Garland’s arrest.