On the show they talked about how the police announced Scott's alibi to the public by saying where he was, and if someone else had killed Laci and still had her body then that gave them the perfect opportunity to dump it where Scott was that day. Did you watch the show last night? They also talked about the timeline and some evidence that was left out because there were certain pages in Scott's case that were missed by the scanner and left out, such as critical information from the mailman about the dog. And the fact that police basically ignored the robbery that happened across the street. There was another aspect about a tip from someone who knew the robbers, but I can't quite remember the details but it was significant.
I do agree that Scott telling Amber that it would be his first Christmas without his wife was telling.