Lester Holt reports on how the investigation into the murder of four-year-old Barbara Jean Horn revealed decades of misconduct across Philadelphia’s criminal justice system.
Genres: Crime , Documentary
Keywords: correspondent , homicide , homicide-investigation , interview , investigative-journalism , missing-person , murder , mysterious-disappearance , mystery , news-magazine , serious , true-crime , latest-web-series-online , tv-shows-online