7. Shane & Otis (S2E3 - "Save The Last One")
At this point of the series, the viewers did not like Shane all that much. When the zombie apocalypse began, he went into survival mode and starting only thinking about himself. He did care for Lori and Carl, but after attempting to rape Lori, the viewers knew that Shane was a terrible human being, and wouldnt last too much longer in the group. Throughout the first season we got to see the different sides of Shane. He was compassionate when it came to Lori and Carl, but cruel when it came to the well being of others. It wasnt until this episode that viewers got to see the real Shane. The beginning of the episode has Shane return with the medical supplies that Carl needed. He returns alone and without Otis. Shane tells the group that they were over run by walkers and that Otis didnt make it. Later, we see what actually happened. Shane and Otis are trapped at the walker-infested school while attempting to get the medical supplies. After they grab the supplies, they are chased by a horde of walkers. Shane makes a shocking move to get a way from the walkers by shooting Otis, and using him as a distraction so that he could escape. This was the moment that the viewers realized that Shane had to go.