“Kaya had problems that even her mother didn’t know about. I knew from personal experience that she could be . . . reckless with her anesthetized body. Years ago, right around the time Kaya and I stopped hanging out every day, she told me that sometimes she cut herself at night, hoping that she’d find out what pain was. I all but freaked out when she showed me the fresh lacerations, all jagged from the serrated steak knife she’d used.”