In The Book of Eli, after Eli (Denzel Washington) has shot most of Carnegie's (Gary Oldman) henchmen and Redridge (Ray Stevenson) has already missed killing him twice, Eli and Redridge are facing each other in the street. We hear a baby crying in the background and Redridge lifts his pistol to make a third shot, but then slightly tilts his head and doesn't fire. Eli turns around and walks off.
Eli is a careful survivor; he is blind, yet survives many firefights, both in the past and the present. He has honed his hearing to allow him (with echo-location clicking of his tongue when needed) to be able to tell where a shooter is, he knows approximately how many men he's against. He seems to hesitate at the end, "looking" at Redridge even, yet does not shoot. It's quite possible, however, that Eli lost track of Redridge's location in the shooting, or is out of loaded ammunition, but for whatever reason he does not take the final kill shot at Redridge. Why doesn't Redridge take a carefully aimed shot at Eli, now that he is remaining still?
I'm not asking for opinions, I'm curious if a reason is given in the script, or in any director's cuts or DVD extras/interviews.