Why Robert Wagner is ‘Person of Interest’ in Death of Natalie Wood

Investigators turned up the heat today on actor Robert Wagner in the mysterious death of his wife, Natalie Wood. Just last week, ‘48 Hours’ broke the news that Wagner, now 87, was named a person of interest in Wood’s 1981 death. The death was originally declared to be an accidental drowning. At a news conference in Los Angeles, Sheriff's Department investigators     explained why Wagner was now under the microscope.