of access to drugs for themselves. Presley's main doctor, George C. Nichopoulos, would often replace Presley's medication with placebos in an attempt to wean him off the drugs. This would be successful for a short time, but when Presley discovered the trick, he simply found himself other doctors. Author Alanna Nash suggests that one of the reasons Parker didn't do more is because he may have just not known how to handle the situation. In her book, The Colonel, she writes: "in the days before the Betty Ford Clinic, the Colonel didn't know where to take him for discreet, effective help and loathed risking the loss of work if the truth got out". After the Aloha special, Parker made a deal that would later be used in court to prove that he had not acted in the best interests of Presley. He offered RCA Records the opportunity to buy Presley's entire back catalog for $5.4 million. At the time, Presley's back catalog was not considered very important and RCA initially calculated it at being worth much less, but in later years it would become one of the most valuable record catalogs in the music business. The sale of the back catalog to RCA meant that after his death, Presley's estate would not receive any royalties for any Presley recordings made prior to 1973. However, Presley had asked him to raise funds to pay for his upcoming divorce settlement, and Priscilla divorced Elvis in 1973. During a closing night performance on September 3, 1973, following news that a Hilton staff member whom Presley was fond of had been fired, Presley attacked Hilton Hotels chairman Barron Hilton in a verbal rage on stage. Parker was furious, and he stormed into Presley's dressing room after the show to confront him. After a heated argument between the two, Presley told Parker he was fired. Angered by this outburst, Parker declared: "You can't fire me. I quit!" Parker accepted that their working relationship was over, Parker telling them over the phone that Dr. Nick's services are no longer required, and demanded that Presley pay him $2 million to end their contract; money Parker claimed he was owed. After nearly two weeks of trading insults back and forth, Parker and Presley decided to continue to work together. Although many around Presley were worried about his worsening drug dependency, Parker appeared to ignore the problem. Several members