This episode is a well made true crime drama that is easy to follow. I don't think the crime was very hard for the police to figure out and much of the drama in this episode is artificial. It is also hurt that it is not solved in 48 hours or anything close to 48 hours.
While the people are interesting and the investigation is straightforward, the crime is basically solved by waiting.
While the people are interesting and the investigation is straightforward, the crime is basically solved by waiting.