Ted Kaczynski.

Theodore Kaczynski Theodore John Kaczynski

Born 22 May 1942 Chicago, United States

Died 10 Jun 2023 Butner, United States

Citizenship United States

Would Be 84 yr If Living

8 min read

Reading time

1,402

Words

Sep 7, 2026

Published

TL;DR

Ted Kaczynski, a Harvard-trained mathematician with an IQ of 170, became the youngest assistant professor at UC Berkeley before resigning in 1969. Over 18 years he mailed 23 bombs killing three and wounding 16. Captured in 1996 after his brother tipped the FBI, he pleaded guilty and received 8 life sentences.

Identity & family.

KIN · 3

Names, aliases, and relatives of Ted Kaczynski — birth name, kin, and personal ties.

Birth Name Theodore John Kaczynski

Native Name Theodore Kaczynski

Nicknames Unabomber, The Unabomber, The Junkyard Bomber, Ted

Parents: Wanda Dombek Theodore Richard Kaczynski
Siblings: David Kaczynski

At a glance.

STATS

Ted Kaczynski by the numbers — life, work, and family.

81 Years lived

Who was Ted Kaczynski?

BIOGRAPHY

Ted Kaczynski — early life, career, personal life, and legacy.

Early life

At six months old, Ted Kaczynski was hospitalized for a severe allergic reaction to medication, and his mother was barred from visiting due to 1943 hospital policy. He had an IQ of 170 and skipped two grades, entering Harvard University at age 16 in 1958. He earned a bachelor’s in mathematics in 1962, then a master’s and Ph.D. from the University of Michigan.

Career

In 1978, Professor Buckley Crist received a package that exploded, marking the first bomb placed by the Unabomber. Over 18 years, Kaczynski mailed or placed 23 bombs, killing three and wounding 16. In 1995, The Washington Post and New York Times published his Manifesto after he threatened more bombs. His brother David recognized the writing and contacted the FBI, leading to Kaczynski’s arrest in 1996.

Personal life

Ted Kaczynski had one sibling, a brother David Kaczynski, who ultimately reported him to the FBI in 1996. His parents were Wanda Dombek and Theodore Richard Kaczynski. He never married and lived in a remote hand-built cabin in Lincoln, Montana, from 1971 until his arrest. He was diagnosed with paranoid schizophrenia in 1997.

Legacy

Kaczynski’s cabin is now part of an exhibition at the Newseum in Washington, D.C. His case was the longest and costliest manhunt in FBI history. He inspired studies on domestic terrorism and antisocial behavior. He is remembered as the Unabomber who conducted a domestic terror campaign spanning 1978 to 1995.

Notable quotes.

QUOTES · 1

A wall of memorable lines from Ted Kaczynski — lyrics, interviews, and off-the-cuff remarks captured over a lifetime.

Imagine a Society That Subjects People to Conditions That Make Them Terribly Unhappy Then Gives Them the Drugs to Take Away Their Unhappiness. Science Fiction It Is Already Happening to Some Extent in Our Own Society. Instead of Removing the Conditions That Make People Depressed Modern Society Gives Them Antidepressant Drugs. in Effect Antidepressants Are a Means of Modifying an Individual’s Internal State in Such a Way as to Enable Him to Tolerate Social Conditions That He Would Otherwise Find Intolerable.

Did you know?

FACTS · 12

Little-known facts about Ted Kaczynski — origins, oddities, and behind-the-scenes details from a public life.

At twenty-five years old, Kaczynski became the youngest assistant professor of mathematics in the history of Berkeley University.
He was withdrawn and antisocial as a child with little interest in friends or social interaction. His mother was worried about Ted’s social development; she considered entering him in a study for autistic children but decided against it.
He was UC Berkeley’s youngest assistant professor of mathematics.
Before his brother David turned him in, the composite sketch of Kaczynski in a hoodie and aviator glasses was the closest the FBI ever came to identifying him as the Unabomber.
Unabomber was never an official nickname attributed to him; it came to stick because UNABOM was both the code name by which his case was classified and the name of the task force searching for him.
He volunteered at the local library near his cabin in Montana.
The manhunt for Kaczynski between 1978 and 1995 was the longest and costliest in FBI history.
Brother of David Kaczynski.
He graduated high school at the age of fifteen.
The prison cell where he currently resides is larger than the shack he lived in before his arrest. Unlike his shack, his cell has electricity, air conditioning, central heating, electric light and indoor plumbing.
Son of Wanda Kaczynski and Theodore Richard Kaczynski.
Kaczynski’s cabin is currently housed, in its entirety, in the Newseum in Washington, D.C. on loan from the FBI as part of the Inside Today’s FBI exhibition. The 12’x10′ cabin is only slightly larger than the 12’x7′ prison cell in Florence, Colorado, where he serves 8 life sentences.

You wanted to know.

FAQ · 31

Quick answers to the questions readers ask most about Ted Kaczynski.

When was Ted Kaczynski born?

Ted Kaczynski was born on May 22, 1942 in Chicago, Illinois. His birth name was Theodore John Kaczynski.
Where was Ted Kaczynski born?

He was born in Chicago, Illinois, USA at a hospital in the city.
When did Ted Kaczynski die?

Ted Kaczynski died on June 10, 2023 at the Federal Medical Center in Butner, North Carolina.
How old was Ted Kaczynski when he died?

He was 81 years old at the time of his death in 2023.
Where did Ted Kaczynski die?

He died in Butner, North Carolina, USA at a federal prison medical facility.
How did Ted Kaczynski die?

Kaczynski died by suicide on June 10, 2023, while incarcerated at the Federal Medical Center in Butner.
What is Ted Kaczynski's real name?

His full name is Theodore John Kaczynski. He was known publicly as Ted Kaczynski and by the nickname Unabomber.
What is Ted Kaczynski's name in his native language?

In English, his native language, his name is Theodore Kaczynski.
What does Ted Kaczynski do for a living?

He was a mathematician and later a writer, though he is primarily known for his criminal activities. He worked as a professor of mathematics at UC Berkeley before becoming the Unabomber.
What nationality is Ted Kaczynski?

He was American, holding citizenship in the United States.
What language does Ted Kaczynski speak?

His native language is English.
Who are Ted Kaczynski's parents?

His parents are Wanda Dombek and Theodore Richard Kaczynski.
Does Ted Kaczynski have any siblings?

Yes, he had one sibling: a younger brother named David Kaczynski, who ultimately alerted the FBI to his identity.
Where did Ted Kaczynski go to school?

He attended Evergreen Park Community High School, then Harvard University for his bachelor’s, and University of Michigan for his master’s and Ph.D. He also lived at Eliot House at Harvard.
What is Ted Kaczynski best known for?

He is best known as the Unabomber, a domestic terrorist who mailed package bombs from 1978 to 1995, killing three and wounding 16. He also appeared in the documentary Unabomber: in His Own Words and the film The Net using archive footage.
How tall was Ted Kaczynski?

He was 5 feet 9 inches tall 1.75 m.
Why was Ted Kaczynski called the Unabomber?

The nickname Unabomber came from the FBI codename UNABOM University and Airline Bomber. It was never an official nickname but stuck due to the task force name.
What was Ted Kaczynski's IQ?

Kaczynski had an IQ of 170, placing him in the genius range. He skipped two grades and entered Harvard at age 16.
How many bombs did Ted Kaczynski send?

Over 18 years, he mailed or placed 23 package bombs. These bombs killed three people and injured 16.
What was the Unabomber's manifesto?

The manifesto was a long document titled Industrial Society and Its Future. In 1995, Kaczynski threatened to send more bombs unless it was published, leading to its printing by The Washington Post and The New York Times.
Who turned in Ted Kaczynski?

His own brother, David Kaczynski, contacted the FBI in 1996 after recognizing the writing style in the manifesto. This led to his arrest.
When was Ted Kaczynski arrested?

He was arrested in 1996 at his remote cabin in Lincoln, Montana. The FBI found bomb-making materials and a live bomb under his bed.
What was Ted Kaczynski's sentence?

In 1998, he pleaded guilty to all charges and received eight life sentences without the possibility of parole, avoiding the death penalty.
Did Ted Kaczynski have a mental illness?

Yes, in 1997 he was diagnosed with paranoid schizophrenia during the trial process.
What was the cost of the Unabomber manhunt?

The manhunt between 1978 and 1995 was the longest and costliest in FBI history, involving multiple agencies and extensive resources.
Where did Ted Kaczynski live before his arrest?

He lived in a hand-built 10-by-12 foot wood cabin on a 1.4-acre lot in Lincoln, Montana, purchased with his brother in 1971.
What happened to Ted Kaczynski's cabin?

The cabin is currently on display at the Newseum in Washington, D.C. as part of an FBI exhibition. It is only slightly larger than his 12×7 foot prison cell.
Did Ted Kaczynski ever teach?

Yes, he was an assistant professor of mathematics at UC Berkeley from 1967 to 1969, becoming the youngest in that department at age 25. He resigned abruptly in 1969.
What were Ted Kaczynski's professional achievements?

He earned a Ph.D. in mathematics from the University of Michigan and published several academic papers before quitting his academic career in 1969.
How did the FBI finally identify the Unabomber?

The FBI’s composite sketch of a man in a hoodie and aviator glasses was widely circulated, but it was David Kaczynski’s tip in 1996 that led to Ted’s identification and arrest.
What was Ted Kaczynski's first bomb?

He mailed the first bomb in 1978 to Professor Buckley Crist at Northwestern University. It exploded when a campus police officer opened it, causing minor injuries.

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Audited & updated by

Olivia has 6 years of experience writing biographical profiles and still approaches every subject like it's the first one. She covers everyone from debut musicians to Hall of Fame athletes to novelists most people have never heard of. She finds something worth reading in all of them. Her drafts tend to come in already clean, which her editor appreciates. She says good writing is just good thinking written down. Hard to argue with that.

Published on September 7, 2026

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