Dateline

The Promise (2014)

Two tenacious sisters turned detectives try to solve the mystery surrounding their mother's death. In an exclusive interview, Keith Morrison speaks with Tammie Cocard and Tiffany Young about their quest to fulfill a promise they made to their mother. No one could have imagined where their journey would lead
Aired: May 02, 2014 Genre: Crime DocumentaryCasts: Lester HoltDuration: 43m Rating: 0 Country: United States of America Production: NBC News, Peacock Productions