[1][2] His memoir, Every Last Tie: The Story of the Unabomber and His Family,[3] details both his relationships with his brother and their parents, and his and his wife Linda's decision to report their suspicions of Ted to the Federal Bureau of Investigation (FBI), which ultimately led to his arrest in 1996.

In 1984, Kaczynski bought a plot of land in remote Brewster County, Texas, dug a hole in the Chihuahuan Desert soil, and partially covered the opening with metal sheets to live in while he built a cabin nearby.

The Justice Department's subsequent pursuit of the death penalty, and Attorney General Janet Reno's initial refusal to accept a plea bargain in exchange for a life sentence, was seen by David and other members of his family as a betrayal.

In 1998, Kaczynski told the Associated Press that he planned to distribute the majority of the reward money to the bombing victims and their families, adding that this "might help us resolve our grief over what happened.

"[13] Kaczynski went on to set up the Unabomb Survivors Fund, which donated $630,000 (after legal fees and taxes) to the victims of his brother's bombings.

After leaving the NYADP, Kaczynski served as executive director of Karma Triyana Dharmachakra, a Tibetan Buddhist monastery located in Woodstock, New York.