India, Oct. 2 -- Celeste Rivas Hernandez's dismembered and decomposed body was found in the trunk of a Tesla registered in the name of singer D4vd last month. While the cause of death has not been confirmed, with autopsy results yet to be revealed, experts said that investigations could hit a major roadblock.

D4vd, whose real name is David Anthony Burke, has not been implicated in the case. His representatives told NBC News that the 20-year-old is cooperating with authorities. Celeste's body was discovered in the impounded vehicle on September 8 after authorities said they received a call about a foul odor in the area. She was 15 years old and had been missing since last year, her family said.

As investigators continue to probe the case...