Minute by minute by minute... Friday at 9/8c on an all-new 2-hour Dateline. | Dateline NBC

3 successful women. 3 victims. 1 evil connection. Andrea Canning brings you the full story tonight on a classic Dateline at 7/6c. | Dateline NBC

A monthslong hunt for two killers led detectives to the last person anyone expected... Andrea Canning reports tonight at 9/8c on a classic 2-hour Dateline. | Dateline NBC