Daisy Clayton was the daughter of Elizabeth Clayton. She lived in Modesto, California and attended St. Stanislaus Academy. By her early teens, she was a chronic runaway and she was in and out of foster homes. She became a drug user and turned to prostitution to support herself. She was associated with Alex Sands, who acted as her protector and pimp. In 2009, at the age of 15, Daisy was murdered by an unknown assailant. Her nude, lifeless body was found by LAPD officer Stan Dvorek. There was little or no evidence to go on and no suspects. Daisy's death was devastating for her mother who was never able to recover her emotional stability.
In 2018, the case was reopened and assigned to Lucia Soto, a detective assigned at that time to the Open/Unsolved unit. A short time later her death was investigated by Harry Bosch and Renee Ballard.