Overview
- The film reports a PROK2 mutation consistent with Kallmann syndrome, aligning with a 1923 medical note that Hitler had an undescended testicle.
- Lead geneticist Turi King says the sample’s Y‑chromosome matched a known male‑line relative, which the team cites to bolster authenticity and to counter a long‑standing claim of Jewish paternal ancestry.
- Producers outline a chain of custody for the sofa fabric from U.S. Army Col. Roswell P. Rosengren in 1945 to a 2014 auction and the Gettysburg Museum of History, which permitted testing.
- The documentary also reports very high polygenic risk scores for autism, schizophrenia and bipolar disorder, which experts emphasize are probabilistic measures rather than clinical diagnoses.
- Independent scientists and ethicists call for peer‑reviewed publication, full data release and clarity on methods and consent, warning against drawing behavioral or moral conclusions from genetic findings.