Because leaving the knife at the scene was dramatic and the whole scene was meant to be dramatic and bold. Besides she had to explain her fingerprints on the knife. How could she do that if she dumped it down the alley? Of course, the knife handle was made out of something that fingerprints didn't adhere to, but she had no way of knowing that then. In short, they used a knife from the house because it was easy to explain and dropped the sock in the alley either accidentally or to mislead authorities. Personally I think the sock was an accident. I suspect its mate and maybe Darin's shirt went down the sewer there and somehow that sock just fell by the wayside. That is why he got so angry when he found out police had found it and not told them.Kitty5001 said:EW that is just terrible that a mom would catch and toss these momentos and act like it's a big game. sick.
Ok I have realized something that I can't explain- if she planned to do this (even just minutes before) why in the heck would she keep the knife (her own) in the house? why wouldn't she have dropped the murder weapon when she dropped the sock yards away. If any "planting" of evidence were to be done it sure would have been the murder weapon rather than a sock you would think. OR if not dropping it down the storm drain why not hide it or wash it off and put it back in the butcher block-I mean if she was really trying to stage the scene to cover her own hind end. Just doesn't make sense for her to say- I picked up the knife and voila here it is still in my kitchen after I did it. I don't know about that??????????????????????