In a letter to Nancy's mother, Sid wrote, "We always knew that we would die in the same place, and we wanted to die in each other's arms. Whenever I think about it, I can't help crying. I swore to her that if something happened to her, I wouldn't live, and she swore the same thing. This is my last commitment to my love. " Sid's friends speculated that the drug dealer killed Nancy for money-two drug dealers had entered their room that night-but looking back, Nancy had tried to commit suicide many times, and her mother could easily imagine the scene at that time. Nancy was likely to stimulate Sid to kill her in order to end her pain and prove his love for her.

One night, the waiter was stunned to find Sid, who was wet all over, cutting her arm with a knife and screaming, "I want to be with Nancy!" " In December, he was arrested again for fighting with Patti Smith's brother Todd in a nightclub. Mcclaren was a little hesitant this time. He thought it was a good opportunity for Sid to stay away from drugs, but he finally paid for his bail again. This was February 1, 1979.

That night, Sid celebrated his freedom with friends in his apartment in Greenwich Village. He didn't touch drugs for nearly two months. He wanted to enjoy himself this time, and he didn't care about the adverse reactions. After midnight, Sid recovered and used the drugs found in her mother's wallet again. The next day, the mother found her son dead in bed because of an overdose. A note was found in his passport: "We have death pact. I must keep my promise. Please bury me next to the person I love, along with my leather jacket, jeans and motorcycle boots. Goodbye! " Mad Anne desperately called Nancy's mother Deborah Spungen and asked if she could bury her son with her daughter. Deborah refused in surprise. But this was Sid's last wish, so one night a few days after his cremation, Anne crept into the King David Jewish Cemetery in Pennsylvania and scattered her son's ashes around Nancy's grave.