Elijah couldn't be bothered with the two A country men.
He originally planned to find a pretext to kill them, but their fawning, bowing, and boasting about their so-called 'famous gun' made him reconsider.
They even let Abigail play around with it, making her quite happy, which made Elijah both amused and exasperated.
Consequently, he abandoned the idea of killing them.
During their refueling, two more mutated zombies ambushed them but were easily dealt with.
The continuous attacks from mutated zombies puzzled Elijah.
He hadn't seen a single ordinary zombie but had encountered numerous mutated ones.
After questioning the two A country men, Elijah learned that there had initially been ordinary zombies as well.
However, for unknown reasons, ordinary zombies had dwindled while zombies with extraordinary abilities had increased.