Of course Shannon could have discovered the problem with the brakes at 2AM early Wednesday morning, but it's not really conceivable that she discovered the problem in Calgary at 2AM Wednesday, and then arranged for a ride to/from Edmonton the following day, spent six hours driving to and from Edmonton, "hung out" with many friends in Edmonton, successfully auditioned for a film part, and she left on Wednesday morning for a round trip to Edmonton ... returning at about 9PM on Wednesday. That's an awful lot to do in 19 hours ... and then wander off 4.5 hours later at 12:30AM without a cell phone or a car.
The husband's timeline is irrelevant. He was home at 12:30AM Nov 27 when Shannon was home. Now she is missing. He did not report her missing. Her cell phone was in their shared accommodation for five days, her car was parked outside, yet he did not notify her family that something didn't seem right. Her family had to wait until he was home after work five days later to learn that she was not at home, so they phoned police late Monday, Dec 1.
There's no reason to doubt posts that were made at 2AM on Nov 26. They were made 19 hours prior to her disappearance, and she was seen at home after that time.
If the husband did something, he should come clean, safe her family the grief, and face the consequences. It's better that he claims crime of passion and takes his 10 years than fighting it and risking 25 ... however, if there was an issue with a damaged brake line that was not caused by rust, then he's looking at 25 years no matter what.
