Investigators are revealing key witnesses' accounts of the night the actress Natalie Wood mysteriously drowned. "48 Hours" correspondent Erin Moriarty first reported that Robert Wagner, Wood's then-husband, is considered a person of interest. Wood disappeared in 1981 after boating with Wagner and actor Christopher Walken. Moriarty joins "CBS This Morning" to preview her report that airs Saturday, Feb. 2 at 10/9 c on CBS.
