I think I figured something out.
There are several references to mysterious unsolved murdres, specifically I remember reading about them in this article:
http://www.cracked.com/article_18459_the-5-creepiest-unsolved-crimes-nobody-can-explain.htmlThe song #15 "wait for the mask signal" refers to "The lead masks case"
Jedediah Island refers to the "British Columbia severed feet mystery"
and lastly WRGOABABD MLIAOI WTBIMPANETP MLIABOAIAQC ITTMTSAMSTGAB refers to "The Taman Shud case"
That's all I could figure out. Anyone find any more mysteries to unsolved murder mysteries?