An independent autopsy couldn’t determine how Nolan Wells died. Here’s what experts say could happen next

By Dalia Faheid, Diana Anos, Elise Haulund, CNN (CNN) — An independent autopsy could not determine why a Mississippi teenager was found dead in waters off the Mississippi coast after a Fourth of July boating trip with friends. But the keenly awaited results of a state autopsy conducted earlier this month could lend some clues.