By Adam Bloodworth David E. Stanley grew up with Elvis at Graceland. He still lives in the same Las Vegas hotel where the pair spent nine years working together. He talks about the dark drug years and the moments of joy with Adam Bloodworth. This’ll get you shook up: Elvis is in the building. Well, his stepbrother is anyway. David E. Stanley grew up with Elvis from age four, and spent years with The King during his Las Vegas residency in the 1970s when he worked as the singer’s bodyguard and assistant. Forty seven years after his death, he still stays in the same hotel where he worked so close…