A new event tracking approach is proposed based on the identification of named entity (NE) patterns such as Who, What, Where and When, and their relationship with news domains such as Politics, Economy, Government and Entertainment. This research comprises three parts. The first part uses a set of user studies to identify NE patterns and their relationship with news domains. Second part is to design a prototype system based on NE patterns. The final part evaluates the prototype event tracking system. This paper described the first part which is to evaluate the importance of NE across news domains. We have achieved a better understanding on NE patterns by identifying the distribution of NE across news domains.