Prosecutors say singer D4vd killed 14-year-old Celeste Rivas Hernandez by stabbing her multiple times. The Los Angeles County District Attorney’s Office shared what they said the evidence would show in a document filed Wednesday. The form says D4vd (pronounced “David), whose legal name is David Burke, met Rivas Hernandez when she was 11, began a sexual relationship with her when she was 13 and he was 18, and killed her when she threatened to reveal their inappropriate relationship. Burke has pleaded not guilty to first-degree murder and other counts. His lawyers have said he did not cause the girl’s death.