In season four, Carl hears a man pleading for help, so he runs to his aid. The glasses-wearing Survivor is being surrounded by walkers holding a branch or pole, waving it around. Carl goes to intervene, but Rick stops him. So sadly, the man is devoured by the dead. A few walkers notice Rick Carlom shown, so they end up fleeing, leaving the man to be fully eaten by the dead. A small, simple tale, right? Well, I actually think there's some mystery here, mainly how he got there.