Conspiracy of Silence – Part 1 Canadian Broadcasting Corporation 1991 | 1 h 32 min Part 1 of the acclaimed mini-series from Director Francis Mankiewicz is based on the true story of the racially-fueled murder of a 19-year-old Aboriginal woman Helen Betty Osborne. See also Part 2. Metadata Title: Conspiracy of Silence – Part 1 Date: 1991 Region: Manitoba Filmmaker: Canadian Broadcasting Corporation