Maybe no 3rd party because they incinerated him too because he knew too much. Just speculating. But why would they even need him except to return Yukon. But why follow?
I suspected Smich hadn't been driving. Why wouldn't he pick up his girlfriend himself if he did. This article makes me wonder if he had his license suspended:
"Smich, who has five previous convictions including drug possession and impaired driving, appeared in court Thursday to face a first-degree murder charge." http://www.torontosun.com/2013/05/23/tim-bosma-case-what-we-know-about-accused-mark-smich
I suspected Smich hadn't been driving. Why wouldn't he pick up his girlfriend himself if he did. This article makes me wonder if he had his license suspended:
"Smich, who has five previous convictions including drug possession and impaired driving, appeared in court Thursday to face a first-degree murder charge." http://www.torontosun.com/2013/05/23/tim-bosma-case-what-we-know-about-accused-mark-smich