Interesting you mention that. As I read this thread from time to time, I'm often reminded of RL as well.
Early on there were probably as many here who strongly believed RL was BG, much the same as some now perceive BG to be DN. Aside from the similarity to RLs clothing, there was also his posture and build, including one hand in the pocket. And I also recall mention that LE were taking their time in building their case because RL was locked up on unrelated charges. And that it took time to anaysize a DNA match. Months ticked by, then nothing....
Yet RL and DN, other than both are male, are Polar Opposite - age, weight, height, lifestyle, you name it. It's rather fascinating how the few facts that we know can customized to fit either of them. IMO the two extremes serve as an example as to how wide the potential net of LE's investigation must be.