2 Season
20 Episode
Grave Secrets - Season 2 Episode 9 The Secret Code (2018)
Investigators in Portland Oregon, working on two seemingly independent murder cases, watch as evidence weaves the two murders together. Street punks, and a wheelchair bound father are all victims of a cold blooded killer.
- Country : United States of America
- Genre : Crime, Documentary
- Studio : Investigation Discovery
- Director :
- Cast : Tim Hopper