09/17/2014 10:23 EDT | Updated 06/16/2017 00:55 EDT

Nathan O’Brien murder case: Douglas Garland to appear in court

Douglas Garland, accused of killing five-year-old Nathan O’Brien and his grandparents, Kathy and Alvin Liknes, is set to appear in a Calgary courtroom today.

The boy and his grandparents disappeared at the end of June from a house in southwest Calgary. Their bodies have not been found.

In July, Garland, 54, was charged with two counts of first-degree murder and one count of second-degree murder.

CBC News earlier learned there were soured business dealings between Garland and Alvin Liknes, including a patent dispute.

Garland, whose sister is in a common-law relationship with Alvin Liknes’s son, was arrested on July 14 following an extensive search of a property north of Calgary that is owned by Garland's parents.

During Garland’s last court appearance in August, Crown lawyers said there was still a substantial amount of evidence to be disclosed to defence counsel, prompting the judge to put over the case until Wednesday.