Some quotes from the timeline thread which I thought were worth reviewing (hope it's okay to post here- they are about evidence, mainly) (thanks to OkieGranny):
Feb 6 — Horry County Police Lt. Chip Squires: "Everything indicates that she drove [to Peachtree Landing. We do not have anything that indicates she did not drive there."
Feb 24 — Horry County Police chief Saundra Rhodes: "We were able to secure enough to get a search warrant for the property of the Moorer's. And after conducting that search warrant we were able to secure enough evidence to allow for probable cause for a kidnapping charge as well as the charge for murder."
Feb 24 — Horry County Chief of Police Saundra Rhodes: "We have had some additional evidence that we located during the search that led us to, giving us probable cause for the murder charge… We needed to secure a good case. That’s basically what it boils down to. From the very beginning, when we sat down with the Elvis family, we really did go through the process of explaining it to them. We told them that there were going to be highs and lows and disappointments on your part in that we’re not moving as fast as you think we should, and it has come to fruition. There are times that we did not move as fast as the Elvis family would have liked us to… Throughout the process of the investigation, when the Moorers did leave the area, we were very much aware of where they were at all times, so we were coordinating with other agencies throughout the course of the investigation… We realize that this is only one step in the process. We are continuing the investigation because our ultimate goal is to locate Heather. We’ve crossed one hurdle and we still have numerous more to go. We recognize that.”
Feb 24 — Horry County Solictor Jimmy Richardson: "“The stuff that was found at the house, if we didn’t have a lot of stuff already from two months ago or six weeks ago, it wouldn’t have been that much, but it has added to things we already expected. So we were able to find some extra stuff after what we already knew to be obstruction of justice and indecent exposure. Certainly there was a lot of strategy involved. In one way, this case is similar to others in that the more you look, the more you dig, the more you usually get. We started off with a baseline and that was us being capable of saying we can prove beyond probable cause that these two did, in fact, obstruct justice and public nudity. As we added to it from the search warrant, we found we could get the kidnapping charge. We ran that by a judge and the judge said, ‘Yes.’ So then after we did that, we looked at some more stuff and then we said, ‘Alright, we think we can get the murder charge.’ We showed that to the judge and, of course, we got an arrest warrant… Keep in mind, kidnapping is simply keeping someone from being able to leave. We have this idea that you put a bag over their head and take them out of state. Anytime you’re unable to leave, it is a kidnapping. I think it would be improper to say we found her blouse or we found her toothpaste or whatever… Any time that you’re charged with the same crime, you may very well have a different interest than your partner. They may have something that they need to talk about or talk with their attorney about that is adverse to his wife and the wife may have something that she wants to talk about that is adverse to the husband. For that reason, both of them have somebody that is able to come in and represent their particular interest… We’ve got enough to charge them with murder without a body. It’s always easier if you have a body, but we’ve tried cases several times without a body. The main thing about getting a body now is more about peace for the family.”