Would you even really go that far as to analyze based on what you posted, whether it was murder in the first or second degree? The planned that the end results were that he was going to murder at least two people. First degree is planning and premeditation period. Regardless of where the Crown theorizes he was going to murder his victims because he planned and premediated it's first degree. HTH. MOO.
While it's true that Garland had a plan, that plan very likely did not happen. What happened instead is that the two intended victims were in different rooms and there was a third, unexpected person. At that moment, the plan was gone. During the kidnapping, it's very likely that the unintended result was that the victims were killed.
I believe that the prosecution earnestly wants the jury to believe that the plan was put into effect, that the victims were alive and well when they arrived at the Airdrie property, and that Garland's plan resulted in their gruesome, torturous murders. I'm not convinced that any of the three were not mortally injured when they left the Liknes property. Is it first degree murder if someone dies during a kidnapping?