Robert Wagner a 'person of interest' in Natalie Wood's death

Nearly four decades after his wife Natalie Wood drowned, investigators are now calling actor Robert Wagner a "person of interest" in her death.

Since 1981, mystery and speculation has swirled around the death of the 43-year-old actress, who had been nominated for three Academy Awards and appeared in the films "West Side Story" and "Rebel Without a Cause".