This point is also compelling. And in light of your insight regarding the other men 'possibly' being involved in the murder, this would explain why they would leave quickly.

I grew up in backwoods areas and also have lived in suburban areas of a large city. For example, a few years ago, a neighbor called emergency number because she smelled natural gas in her house. Fire and rescue vehicles were on scene. Many neighbors came out of their houses and gathered near the scene. When the crisis was over the group stayed together for quite a while afterward. Crisis and emergencies typically attract and gather people, whether for curiosity or concern. It's my experience, especially in rural areas (and Southern areas people tend to be more hospitable and neighborly). For men that were there with A.S. to leave quickly, lends to the theory and evidence that they were involved with the murder of Grant. A missing child and a missing woman alert in my area instantly brought neighbors out gathering and searching. A trauma of this nature would have made "these mystery men" gather, hover and stay. People cling to crisis. We tend to gather when we are in shock or have experienced high stress. In this case it is the opposite. They ran and hid.