I think it's kind of an interesting trial. Many things make me think he had something to do with the death, even if he didn't do it himself.
It seemed pretty obvious that he was going to make a run out of the country before he was arrested-- changed his appearance, had a lot of cash and his brother's passport on him. Either guilty or very scared. I guess someone could be scared enough to run even if they weren't guilty, especially if he thought he might look guilty for other reasons.
Those other reasons being:
no one seeming to know that he had the boat, which was his alibi;
telling people that he was playing golf when he was really at the marina;
his FIL, who loved to fish, not knowing that Scott ever fished;
All of those things could be explained away individually, but collectively, they don't make him look good at all.
As I recall, he reported her missing to the police before he called her family. If your wife is eight months pregnant, wouldn't you call a family member or a hospital first to see is she went into labor, got sick, had an accident, or maybe a family member knew where she was? If he really did call the cops first (vs an erroneous news report or my faulty memory), I would never be convinced that he wasn't guilty.
On the other hand, it does sounds like the detectives may not have followed up on some other information they had. The fact that one of the detectives was a friend of Scott's girlfriend could point to revenge on his part once the girlfriend discovered that Scott had been living a double life.
I'm curious about Amber's upcoming testimony.
Regardless of whether he murdered his wife, the man is a scumbag!
Oh, yeah, your original question was for opinions re guilty or not. I think he was at least involved in her being killed if he didn't do it himself.