Great questions and :wagon:
Welcome, Liberty's Way! You raise some good questions. I don't believe there are too many people who know very much about this case, other than the person or persons responsible for the disappearance of HB. Most of your questions could only be answered at this point by law enforcement, and they have been very tight-lipped. To my knowledge, they have not let out much at all about any of the details of what evidence has been recovered. We have only been told some things by the family (like the fact that the blood was indeed Holly's, according to her dad) I did hear somewhere, if I recall correctly, that there was not enough blood to necessarily indicate a mortal wound. There was enough blood that it was noted, so I am assuming it was at least a little more than a couple of drops. But as far as I know, we have no record of exactly how much blood was there.
Regarding question two, there are mixed reports that there was a restraining order that Holly had against a previous boyfriend. Since LE nor the family is talking, nothing much is being confirmed or denied. Reports also came out that she had broken up with her most current boyfriend 3 days prior to the disappearance. However, since, to my knowledge, the family has not commented on this, I don't feel it is useful to speculate. Law enforcement said shortly after HB's disappearance that they felt the abductor was someone familiar with the area, because they would have had to know the paths through the backwoods to be able to escape undetected.
There has been a lot of criticism about how long it took to get the crime scene secured, since lots of people heard Holly was missing and showed up at the house to help look. It also was a while, I believe, before anyone launched off into the woods to look for Holly. I believe that the first thing that should have been done was to get a search crew started into the woods, preferably with dogs. To let someone get such a head start on LE is, IMHO, unpardonable.
I hope that if the family or close friends are still monitoring these discussions that you would reconsider your silence and think about putting your whole story out there. If the family has nothing to hide, then what harm could come from putting the facts out there? Perhaps someone would remember something that could crack the case and help bring Holly home.
I want to comment on the theory that maybe there was some kind of accident, like a hunting accident, and Holly was mortally wounded and then removed by someone to cover the accident. I just don't see that. Most people know that if there is an accident, especially involving people that are highly esteemed in the community, the person responsible is not criminally charged. I don't think this family would have gone to such lengths to cover something that was obviously an accident.
The scientific principle called "Occam's razor" reasons that if you have two or more theories that explain observed facts, you should go with the simplest of the theories, until you have more evidence which changes the facts. In this case, the simplest explanation seems to be that someone, not a member of the family, was lying in wait for Holly on the morning she disappeared. He waited for her to exit the house, and he likely surprised her, causing her to drop her soda that she was carrying. He removed her so quickly from the scene that she did not have time to drop her phone, purse, lunch or books. All those apparently went with her into the woods. I don't think he expected her to scream as loudly as she did, and maybe it was at that point that he caused her to crouch or sit down to hide from the neighbor across the way who was getting into his car to leave for work about that time. (I have no idea if the man who heard Holly scream had a visual on the back of her property.) Perhaps this was the exact moment the brother looked out the window and saw Holly and her abductor crouching or sitting on the ground. As soon as the coast was clear, the man stood Holly up and walked her into the woods, where, perhaps, some ATV or the like was waiting to take them out to a waiting vehicle parked in a hidden place. I don't think the perp expected Clint to be home. I think he thought Holly was the last one out that morning, and I don't think he would have taken a chance on abducting her if he thought her brother was inside watching his actions from the kitchen.
One other thing that deserves mention. Why didn't the guy just force Holly into her own car and force her to drive wherever he wanted to go? If he was someone scary enough, she probably would have complied. Or, he could have bound her, put her in the car, and driven her car away himself. The fact that he did not use her vehicle tells me that he had his own mode of transportation and a destination in mind that would not have been a good place to park Holly's car, as it would have drawn attention to him.
According to all reports, this family had a stellar reputation in the community. There is no evidence to suggest there was any friction in the home. The simplest explanation is that this is the work of a stalker, either known to Holly or a complete stranger--but someone who wanted her for his own reasons. Until more evidence is revealed, if it ever is, complicated, outlandish theories don't hold a lot of water.
All these are my own humble opinions, thoughts, and musings, which are no more right or wrong than the theories of others.