A poster recently said he could think of NO reasons why she would say this if it isn't true.
I gave him 3 possibilities off the top of my head.
She has 3 sons whose dad has confessed to murdering Jon Benet Ramsey. She would like for that reason alone for it not to be true.
She could be feaful that she actually has known or should have known something about him that she should have told authorities and didn't. If he's really a notorious murderer, and she could have done something to stop him but failed to, she might be an aider and abetter.
She might have a poor memory. Some people do, and in some cases they actually have an illness including metal problems that could affect their memory.
I never heard back from that poster.
Surely you could think of even more possibilities than I have...
I think most mothers of young children would remember when their father WASN'T home on Christmas. That's why I think she would come out and say he was home - not that she has concrete proof he was home.
I, myself, am trying to see how easy it would be for me to recall where I was for Christmas 10 years ago. Actually, I just did! I was working at the office on December 25th 1996 and being paid holiday overtime here in Texas - so I'm cleared. My proof is the copy of my time sheet for the last two weeks of 1996.
I suppose theoretically I could work my shift then hop on a plane to Colorado and get to Boulder just in time to commit the murder and be back in time for work the next day but, if so, wouldn't there be a flight manifest somewhere to prove that happened?
BTW, it's not uncommon for me to work on Christmas or Thanksgiving each year because I'm single and all my family live out of state so I usually work one holiday or the other so other employees with families can spend those days with their kids.