User blog comment:CrashingCymbal/Are There Any Serial Killers/Murder Cases That You Have a Keen Interest In?/@comment-10950063-20140130235756/@comment-10950063-20140131170949

Almost all serial killers are prideful and want some kind of attention. Letters are a pretty common element (my personal favorite is the Axeman of New Orleans'). I think BTK is noteworthy because he's really a kind of textbook illustration of both the control these killers have and also the arrogance. He also provides a boost to the theory that serial killers never stop, they're either dead, in jail or waiting.

"The Act of Killing" is a must watch documentary, because it about the documentary director telling these men he wants them to make a movie about what they did. They can do it anyway they want it. So, you not only hear them talk about what they did, you see how they view it and how they want the world to view it.