'The underworld...'
Cain had concluded earlier on that unless one had a sufficient amount of luck, the only way to survive the initial stages of the apocalypse, was by possessing the necessary skills. Anyone lacking both was as good as dead...
'If my theory is correct, then a lot of the denizens of the underworld should still be alive.'
The sticks and stones of the underworld were guns and knives. People who created and used these sticks and stones were no different from lunatics.
'Something that proves my theory quite well is this unique group of people. I'm sure Steve is a denizen of the underworld, as well as Hunter and Dan. The auras they give off are way too similar.'
'As for the fatty, he looks too shady to be a good person.' If Vincent could hear his thoughts, he would probably be wallowing in years at his unjustified accusations.