Case File: Ted Kaczynski

Theodore and Wanda Kaczynski were a blue-collar Polish-American couple in Chicago when their first son was born in 1942. By all reports, Wanda, a well-read, politically progressive woman, and Theodore doted on “Teddy,” reading to him from increasingly complex books and magazines. By grade school, they were discussing articles from Scientific American.

Something happened, however, when Ted was 7 years old. His brother David was born, and Ted became sullen and withdrawn. “He changed immediately,” a relative told The New York Times. “Maybe we paid too much attention to the new baby.”

A neighbor said that young Ted “was strictly a loner. This kid didn't play … He was an old man before his time.” While David was friendly and engaging, people remembered Ted as bookish, isolated and painfully shy—if they remembered him at all. High school teachers noticed that he was well ahead of his classmates academically, so he skipped two grades. This may have deepened his isolation, since he was bullied by bigger, older students until his graduation at age 15.

Kaczynski showed an early interest in explosives, for example, and once built a small bomb that detonated in a chemistry class, blowing out two windows. But overall, he was withdrawn and uninterested in sports, dating or any social activities.

Attending Harvard University on a scholarship did nothing to invigorate Kaczynski, nor did getting a Ph.D. from the University of Michigan. He mostly stayed in his dorm rooms, avoiding almost all social contact. However, some of his academic work was published in journals of advanced mathematics, greatly impressing his professors.

While in college, Kaczynski volunteered for a psychological experiment conducted at Harvard's Henry A. Murray Research Center. The research, designed to analyze how people respond to extreme stress during interrogations, forced subjects to endure hours of verbal abuse and personal insults. Some investigators believe this and other stresses Kaczynski experienced during his academic career may have contributed to his simmering rage against academic institutions.

By the time Kaczynski was hired as an assistant professor of mathematics at the University of California, Berkeley, in 1967, the campus was erupting in protests over the Vietnam War, civil rights and other hot-button issues. Still, the quiet, young academic made no friends and paid little attention to the political activism surrounding him. After two years, he suddenly quit his job and left Berkeley, eventually settling in the mountains of Montana.

On a small, isolated plot of land outside of Lincoln, Mont., in 1971, Kaczynski built a 10-foot-by-12-foot wood cabin with no electricity or running water. His days were filled with reading, writing and tasks like hunting, chopping firewood and cooking over a campfire. But unlike Henry David Thoreau and other hermetic writers and intellectuals with whom he is sometimes compared, Kaczynski’s rebellion against society took a darker, more cynical turn.

Letters to his family grew increasingly angry in tone, and in his diary and his now-infamous manifesto, Industrial Society and Its Future, Kaczynski laid out a cynical vision of a society that had turned its back on natural, healthy ways of living, writing:

“The Industrial Revolution and its consequences have been a disaster for the human race. They have greatly increased the life expectancy of those of us who live in ‘advanced’ countries, but they have destabilized society, have made life unfulfilling, have subjected human beings to indignities, have led to widespread psychological suffering (in the Third World to physical suffering as well) and have inflicted severe damage on the natural world.”

The solution to this widespread suffering was clear to Kaczynski. “We therefore advocate a revolution against the industrial system,” he wrote. “This revolution may or may not make use of violence; it may be sudden or it may be a relatively gradual process spanning a few decades … This is not to be a POLITICAL revolution. Its object will be to overthrow not governments but the economic and technological basis of the present society.”

In 1978, someone left a package in a parking lot on the University of Illinois Chicago campus. The return address listed a professor at Northwestern University, but when the package was returned to him, the professor didn’t recognize the package, so it was then given to campus security officers. When an officer opened the package, it exploded, injuring him. Investigators were able to recover a crude pipe bomb packed with gunpowder that was housed inside a container constructed of different woods, artistically sanded and polished.

The following year, a student at Northwestern University's Technological Institute was injured when he opened a cigar box containing a small explosive device. Several months later, a device on an American Airlines jetliner detonated in the cargo hold, filling the cabin with smoke. In 1980, a bomb hidden inside a hollowed-out book sent to the home of American Airlines President Percy Wood caused severe burns and injuries when Wood opened the book.

By this time, U.S. postal inspectors, the Bureau of Alcohol, Tobacco and Firearms and the FBI had begun to pool their resources in an investigation codenamed the “UNABOM” case, short for the UNiversity and Airline BOMbing targets. Investigators noticed some commonalities in the attacks; the devices often contained the initials FC, which were later revealed to stand for “Freedom Club.”

The attacker also seemed to have an interest in wood and other natural elements; some of the devices included twigs and bark, and two victims had the name “Wood.” However, the bombs and packages were meticulously designed to evade detection. “He was the most careful serial bomber anyone had ever seen,” FBI Special Agent Kathleen Puckett said.

The bombing attacks continued for 17 years, sometimes occurring just weeks apart, mostly targeting university officials, airline companies or scientists. In 1985, the Unabomber’s 12th attack killed a computer store owner when he opened a box containing a nail-and-splinter bomb. It was the first of Kaczynski’s three murders. Other bombing attacks (there were 16 in all) severely injured or disfigured a total of 23 victims.

As the attacks continued through the 1980s and into the 1990s, frustrated investigators in 1993 sought the public’s help, offering a $1 million reward and toll-free number for tips. Little came of their efforts, however, and the Unabomber continued his attacks—killing two more people—until 1995, when he began reaching out to the media.

In 1995, a letter to The New York Times detailed the Unabomber’s interests: "The people we are out to get are scientists and engineers, especially in critical fields like computers and genetics," it said. The letter also requested publication of a manuscript and promised that when the manuscript was published, the attacks would stop.

The Unabomber’s 35,000-word manifesto was published in the Times and the Washington Post in September 1995. It contained a handful of clues to the identity of the Unabomber, but he remained unidentified until Ted’s younger brother, David, read it. The two brothers had been estranged for years, following an exchange of letters that detailed Ted’s seething rage at his treatment by their parents and how he felt abandoned by David following his brother’s marriage. Some of the language used by the Unabomber in the manifesto was eerily similar to Ted’s writings in their letters.

After receiving assurances that Ted would not be harmed in any arrests, David gave the FBI evidence that the manifesto mirrored many of Ted’s letters and provided investigators with his address in Montana. Ted was arrested at his cabin by a team of federal agents in April 1996, almost 18 years after his first bombing attack.

Kaczynski rejected his counsel's proposal of an insanity defense, instead pleading guilty in 1998 to all charges against him and accepting four consecutive life sentences plus 30 years in prison without parole. Kaczynski was jailed at the ADX Supermax prison in Florence, Colo. After receiving a cancer diagnosis, he died by suicide in June 2023 at age 81.

Kaczynski’s cabin, filled with bomb-making materials, is now on display at FBI Headquarters in Washington, D.C. His lengthy manifesto—initially derided as the work of a murderous madman—has been reevaluated as a flawed but notable contribution to American environmental literature.

“Indeed, many of Kaczynski’s observations about technology and the environment have proven to be prescient,” James C. Oleson wrote in Contemporary Justice Review. “Accordingly, a new generation of followers have adopted his anti-technology philosophy. If Kaczynski was correct about technology and the environment, this might warrant a reevaluation of his socio-theoretical writings and reconsideration of his constructed persona as a mad genius.”