Joanne Miller is introduced as a wholly new fictional FBI agent who anchors the investigation and studies the manifesto. Reviews note her character battles institutional sexism and complacency in a stock procedural role, but this remains a subplot rather than the premise.

The story stays faithful to the historical timeline and real figures like Murray without altering established characters for ideological reasons. Core narrative focus stays on Kaczynski's psychological experiments and capture, showing no activist framing or DEI themes. Mixed reception centers on pacing and generic thriller elements rather than ideology or creator intent statements. This keeps progressive elements minimal and incidental, preserving the historical emphasis without forcing contemporary messaging into the central plot.