The trial of former Airdronian Douglas Garland is already starting to intensify. 

On Tuesday, January 17th, Garland's elderly parents were called to the witness stand. 

Those in court heard disturbing details about the events that followed after the disappearance of Nathan O Brien and his grandparents.

Garland is accused of killing the three over a petty business dispute with the Grandfather Alvin Liknes. 

All eyes will be on the Calgary courts, as the trial is scheduled to last five weeks. 

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