Surveillance images reveal new clues into disappearance of Kelly Dwyer

There are new details in the case of a missing Wisconsin woman whose disappearance prompted a massive search. Yoga student Kelly Dwyer vanished in 2013. Detectives learned she was last seen on a date. Then surveillance images revealed vital new clues for investigators. Peter Van Sant joins "CBS This Morning" to preview his "48 Hours" report, which airs Saturday, Nov. 2 at 10/9c on CBS.