Given that Garland was a suspect in four days, I think that it was a simple process for police to find the correct suspect. Police went to Mexico, and it wasn't because they were looking for people that they knew to be deceased. It was probably to investigate motive. The motive might be as simple as the Liknes couple convincing Garland's sister to give them money for their retirement home, and then omitting her name from the title. If Garland felt that Alvin had taken advantage of him, he might have been really angry if he believed that the couple took advantage of his little sister - a mother with three growing children.
In this discussion, all sorts of wild, unsubstantiated theories have been explored, but there's nothing to support any of them. It was probably a very simple, straight forward murder where the bodies were removed for the sole purpose of removing evidence from the scene. The murderer probably wanted to distance himself as quickly as possible from the evidence (that's what murderers usually do), so that last thing he would do is take the victims to his parent's home. The bodies are probably in a field near some water in a location that people rarely visit. Garland is familiar with the area between his parent's acreage and Edmonton, Brooks, and West to the mountains. It's a huge area to search, so the discovery of the remains will happen by chance one day.
