Murray McClenaghan is facing his second murder trial.
The man is accused of fatally shooting his business partner Donald Hanscom in 2004.
Jurors are not being told why McClenaghan is being retried for the killing of Hanscom, but Monday, the allegations and defence were laid out to them.
The jury consisting of seven men and five women, heard Monday morning that McClenaghan allegedly was to meet with Hanscom at their business located west of Anthony Henday Drive on June 30th, 2004.
The court heard how they were to meet because business had not been good and Hanscom was in the process of buying out McClenaghan.
The Crown's theory was that an argument ensued and McClenaghan pulled out a shotgun.
Crown prosecutor Julie Morgan told them he fired three times at Hanscom.
Two shots, a pause, then a third shot."
The Crown stated that McClenaghan then fled and drove around for awhile before turning himself in to the Mayerthorpe RCMP, telling the officer there, "He had shot someone in Edmonton".
The defence said her client is not criminally responsible because of a mental disorder. Mona Duckett told jurors, "He does not have all the answers."
McClenaghan and Hanscom owned a landscaping company together.
With files from CTV's David Ewasuk
