Theories
Who Killed Jasper

Warning This Section Does Contain Spoilers

At the end of season Transformation, Felix sends us an LFoA pin, the same pin that Jasper's murderer was wearing on his lapel. Most people would assume that Felix killed Jasper but I don't think Felix will get his hands dirty. Felix most likely sent one of his disciples and Listening Friends that he has sent these pins to take care of Jasper. I also believe that is the reason this season is called Initiation. This murder and this whole process of watching Jasper and then killing him has been our INITIATION into his "cult" of "Disciples".