On the subject of motive, I guess it can be complex: If Sadie or Tex participated in the murders because they believed they were killing to bring on Helter Skelter, that is their motive. If Charlie was playing a different game, he might have had a different motive -- but if he convinced them to kill and convinced them they needed to do it to start the race war/revolution, that would still be their motive. Without some serious evidence that hasn't come to light yet and doesn't seem likely to at this point, I don't see how I could become convinced that Charlie was "moving the chess pieces around" and causing the murders to pull of a big drug burn or land a huge pile of cash. Either might be a byproduct of TLB (there was the coin collection, for instance), but not a primary reason to have people stabbed hundreds of times with their blood used as paint for obscure messages. I could certainly buy that Charlie had all this power over these people and he got fed up when the 'pigs' rejected his music after he was building himself up for a rock-star future and found himself kicked back down to a 'garbage people' lifestyle, and the pressures of arrests and bikers and his followers starting to cause more trouble than they were worth, and deep inside he knows he's going to end up back in prison again (forever this time) -- and he punched the 'F--k It' button in his head and decided to strike back at a world that he felt just wasn't treating him fairly. In short, the real meaning of Helter Skelter in Charlie's head may have been simply: "I will have my people butcher because I can, and I choose to," or "If I'm going to be going down fast, I'm dragging everyone with me."