Dan is a free soul who has been all over the world. His father worked as a pilot and mother worked as a doctor, both of his parents were very focused on their carrers so Dan had to learn how to take care of himself in a quite young age, alot of the times he came home from school there was nobody home to look after him. It didn't take long for Dan to discover alchol, as early as 12 years old he got drunk for the first time. As the time went Dan became the one who threw all of the parties, he was the one who could get the booze and even some drugs. He was able to do this since his parents were so focused on their carrers so they didn't see what was going on. During this time Dan felt like he was the center of the world, that everyone wanted to live like him and be like him. When school was over he was 18 and had no real idea of what he wanted to do with life, so he decided he needed to find himself, who he is and what his meaning in this life is. He figured that a trip to Australia would be perfect, he could see the some culture maybe travel in the outback and get to surf on the waves. So with the money his parents gave him he flew of to the other side of the world, where he made everyday to a party, he felt like he was living the dream, during the night he went out and during the days he was at the beach and he did all of those things he wanted to do, he went to the outback, he saw some culture and he surfed them waves. When he came home he had realized that this was what he wanted to do and he did it all around the world. His life was perfect for him, then the outbreak happened.
Dan had decided that he wanted to travel to a place where not alot of people travel to, he wanted to go to Chenarus, a city of a rough people who had been hardened by the by the war, the cold weather and all of the manual labor in the mines. So he traveled to Chenarus and he didn't get dissapointed by what he saw when a arrived at the hotel, it was just as he expected and as he wanted to be. It was gritty and the old lady who owned the hotel didn't greet him, she just stared at him when he arrived and with a unkind tone she told him where his room was and that she didn't want to hear a sound from that room after 9pm. Dan was fascinated by how raw Chenarus was, he was intrigued to learn more and explore more of it.
When he started hearing of the first infected he was told from his mother to take the first flight home but Dan underestimated how big this was going to be and he decided to stay in Chenarus since he felt that it would be very interesting to see how people react in a situation like this one, but that was a mistake. Dan was able to survive by sticking to groups of people and by putting his life above others it was a quite easy task to survive when you could sacrifice others. He did everything to survive himself and he tries to justify this by telling himself that there never was anything more he could do and if he had done anything more to save the other people in the group he would problably himself be dead. Now he's all alone, with no one to leave for the dead to be able to run away himself.
Dan is a selfish man who probably should be dead by now but he isn't. He is not the strong survivor you would think would be left at this point but he is alive and he is surving.