Prosecutors said Wednesday that 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 that provided the first detailed allegations of efforts to dismember Rivas Hernandez's body and get rid of evidence. The court filing said D4vd, 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.