David Kaczynski
United StatescounselorMaleb. 19476.0Global Dominance: 0.01%David Kaczynski is a former counselor for troubled youth who is best known for his decision to turn in his brother, Ted Kaczynski, the infamous Unabomber, to the authorities in 1996. He spent decades writing to Ted, seeking to explain his actions and the moral obligation he felt to stop the violence perpetrated by his brother, which had caused widespread suffering across the United States.
Power12,167
Reach191,774
Country presence
Recent news mentions
David Kaczynski recognized Ted Kaczynski's writing style and alerted authorities.
Unabomber case set precedent for Nancy Guthrie ransom note release, expert saysFox News·United States· 2026-08-03
United States· 2026-08-03
David Kaczynski, a counselor for troubled youth in upstate New York, sat down to write a letter to his brother Ted.
The Unabomber's brother turned him in. Then spent 27 years trying to win him backThe Times of India·
India· 2025-05-06
India· 2025-05-06Also mentioned
Ted Kaczynski
David Kaczynski wrote a letter to his brother Ted to explain why he turned him in.
Ted Kaczynski’s Brother Wrote Him For Decades to Explain Why He Turned Him InThe New York Times·United States· 2025-04-29
United States· 2025-04-29Also mentionedTed Kaczynski