It's probably just me, but in 3x14 Damaged, when talking about the crime, they say it happened on Christmas Eve at one point. But it's like March (the 20 year anniversary) and when addressing it again, they say the father bought the axe for(/on) Christmas Eve to cut down a tree. I wish I had more details, but I can't remember all that well. When they first say Christmas Eve, it might've been an episode or two before. I really can't remember; I've just always wanted to know if it was a mistake or not. This probably didn't even make any sense. Sorry. :(