I agree with everything you mentioned. I feel it almost had to be a killer "hunting" for victims. A person doesn't carry a rifle to a place like that for no reason. It could have been someone with a gun walking around wanting to shoot or target practice and decided to shoot two people. That is uncommon, but has happened before. I recall a case in the Midwest a few years back where a guy shot two children shortly after purchasing a new gun and admitted later that he wanted to see "what the gun would do to a human". The case remained unsolved for several years until he used the same gun to kill his girlfriend. I believe he is someone who is familiar with the area and knew the place was a lovers lane or sometimes a hangout for younger people. Some have speculated that this may have been a "revenge killing" against Heidi as her father was a VA State Trooper. But, I dismiss that idea since he was a helicopter pilot and his interaction with the public would have been minimal. Plus, other than her friends, who would have known she was the daughter of a LE officer? Also, their outing together was not planned well in advance and was pretty much a spur of the moment thing. LE has never stated if Heidi was sexually assaulted or not. Could this have been the motive? LE has stated that they have DNA-could that be the source. Certainly, there are other ways to capture DNA such as touching of the clothes, their car or maybe shell casings. I remember being in the area a couple of days after this as I drove my son to Radford University for his freshman year of college. We stopped at a restaurant for lunch and I read about the case in the local paper. The investigators described the crime scene as "brutal". Could a sexual assault have been what they were referencing?