The Silencing

The spear-launching tool used In the movie is called an "Atlatl". Spear-throwers appear very early in human history in several parts of the world, and have survived in use in traditional societies until the present day, as well as being revived in recent years for sporting purposes. In the United States the Nahuatl word atlatl is often used for revived uses of spear-throwers. Australian aboriginals called their spear throwing tool a Woomera. It is still used by traditional owners in rural areas of Australia, and was in common use by first people throughout the country only 230 years ago.

After Rayburn is shot in the stomach and treated, it would be virtually impossible for him to stand on his own and run through a forest like he does less than 24 hours later.