Karen Doyle was 22 when she became a hospice nurse in Phoenix, Arizona, caring for terminally ill patients in their final days. But for three years, she allegedly stole fentanyl and hydromorphone meant for dying patients, replacing the drugs with saline while falsely documenting them as administered. Families complained their loved ones were still suffering severe pain, yet records showed they had been medicated. Investigators later discovered Doyle was allegedly injecting the stolen drugs herself, often in parking lots before patient visits. The scheme went unnoticed until a patient’s daughter — a pharmacist — realized her mother’s fentanyl patch looked unusual. Testing revealed it contained no active medication, exposing years of alleged theft and oversight failures within the hospice system.