LOS ANGELES -- Graphic testimony continued Friday on day four in the preliminary hearing for singer D4vd, as a judge weighs whether there is sufficient evidence for him to stand trial in the killing of 14-year-old Celeste Rivas Hernandez. Prosecutors are seeking to prove D4vd, whose real name is David Burke, began sexually abusing Rivas Hernandez when she was 13 and he was 18, then stabbed her to death when she threatened to reveal their long sexual history and crater his career. A Los Angeles Police Department detective testified about explicit photographs found on Burke's phone that allegedly depicted sexual...