The thing that makes this case so clear for me is that people try very, very hard to come up with reasons Darlie might be innocent, while there is so much evidence, blood and otherwise saying that she is guilty.
As people who follow these types of cases closely, we get caught up (and rightfully so) about the legal definitions of guilty vs. not, but most of the pro-Darlie camp seems to be swimming in hypotheticals and could-haves. And sure. You can come up with explanations of varying degrees of credibility and psychological mitigators in terms of her actions after the fact and her varying accounts. But if you look away from the legal system just for a moment, look at this case straight on, and take the evidence piece by piece while fitting them into a Darlie is Innocent scenario--I just don't see it. People can say that the bread knife evidence was the result of cross-contamination and that the blood evidence can be explained and that sock, etc, etc, but to explain all of it away while justifying Darlie's post-murder behavior starts to strain credulity. I have never seen one hard piece of evidence that points to anyone else. We're not even looking for a particular person. It could be the UPS guy or a cashier at the grocery store she frequented. There was one print that could have been the smeared print of one of the known people at the scene. The rest? When you have a large number of finds pointing to ONE person, and not one piece of solid evidence pointing to one of the other six billion people in the world, how do you reconcile that? Not in a legal sense, but with common sense? I'm not sure you can.
We have to find this alleged intruder with no physical evidence, no conceivable motive, and with the only living witness apparently unable to adequately explain away the mountains of evidence point right at her. We're looking for an intruder that cut the screen to force entry, yet never entered. An intruder who absolutely butchered two small boys, but had the etiquette to place the knife, assumingly brought to gain entrence, into a butcher block that not only had a slot empty, but a slot that fit! Convenient, and it'd be incredibly rude to drop a clean knife in a bloodbath. An intruder calm enough to clean up after himself, but too harried to do in the only real threat in that living room. An intruder sick in the head enough to kill two randomly-chosen children, but not sick enough to ever do it again, apparently.
Heck, maybe the killer's in jail. Heh.