The only info in MSM on NL's alibi for Saturday is the audio interview with IM (linked a few pages back and to be taken with a HUGE grain of salt, IMO) when she states that NL was home with her child.
That being said, personally, I don't think it is out of reason to believe that, if NL had nothing to do with EC's death, she would still stick by her husband's side. She is young, they have been together her entire adult life, and through her high school years, as well, they have a child together, they had plans for their future together, some rumors have circulated that she isn't very close with her family, she doesn't have a career or the ability to support herself and her daughter on her own immediately, and her husband, more than likely (if she hasn't been involved in the death or coverup) is lying to her and swearing up and down that he had nothing to do with Erin's murder. If not involved, she probably wants to believe with her entire being that her husband wasn't capable of such a thing and would probably even gloss over inconsistencies in order to hold onto everything she is surely going to lose in the coming months. It definitely wouldn't be the first time in history that a woman lived in denial of her husband's actions so as to not have to give up the life that she has grown accustomed to.
I know a lot of people think otherwise but, MOO, in the video of her at the court chewing gum I see a young woman who is in shock and scared, trying to hold it together. I didn't see indignation or a cunning manipulator. MOO.