Ted Kaczynski (born May 22nd 1942), widely known as the Unabomber, was also considered a suspect in the Zodiac killings, due to his interest in ciphers and his penchant for engaging with authorities, media outlets and victims of his crimes in the form of letters and manifestos. He contacted authorities in 1995 wanting a 50 page article he had drafted called Industrial Society and its Future published in a leading newspaper or journal, stating his murderous bombing campaign would cease if this criteria was met.
His reign of terror killing three and injuring 23 people, ended on April 3rd 1996 when he was arrested in his cabin near Lincoln, Montana, where Kaczynski was living in remote isolation.
He was captured thanks to his brother David Kaczynski, who after reading the 50 page 'Unabomber Manifesto', drew parallels to letters he found written by Ted to newspapers twenty years previously using similar phrases and ideas.
Ted Kaczynski's handcrafted bombs claimed their first main casualty, when John Hauser, a Captain in the Air Force was partially blinded in one eye and lost four fingers when receiving a mailed bomb in 1985. Hugh Scrutton who owned a California computer store, in 1985 became the first fatality of the bombing campaign, followed by Thomas J Mosser an advertising executive in 1994 and Gilbert P Murray in 1995, president of a lobbyist timber industry group.
In total Kaczynski sent 16 bombs to individuals, airlines and universities.
He is now serving four life sentences with no chance of parole.
The Zodiac link is based around his high intelligence, having acquired a PhD in mathematics from the University of Michigan, plus he excelled in geometry and calculus having taught courses at the University of California, Berkeley where he was an assistant professor of mathematics. Therefore the concept of radians and map coordinates used in the Zodiac letters would be well within the capability of Theodore Kaczynski.
Theodore Kaczynski lived in Berkeley during the time of the Lake Herman Road murders on December 20th 1968, but moved to his parents house in Lombard, Illinois in the middle of 1969, before finally relocating two years later to a remote cabin on the outskirts of Lincoln, living as a recluse.
His interest in coding and knowledge of bomb making equipment are two of the main reasons people look into Theodore Kaczynski as a possible Zodiac suspect.
However he has never been linked through DNA, fingerprinting or handwriting analysis, plus he was living in Lombard, Illinois during key Zodiac timelines, plus he, or his copious quantities of literature have never referred to any of the known Zodiac crimes, despite the fact he has little to lose after receiving his heavy prison sentence, from which in all likelihood he will never see the light of day again. He has since been cleared as a suspect by most people, including the FBI and San Francisco Police Department.
1963 June 4th-The Domingos/Edwards Murders
1966 October 30th-The Cheri Jo Bates Murder
1966 November 29th -The Confession Letter
1966 December- The Riverside Desktop Poem
1967 April 30th- Bates Had to Die Letter
1968 December 20th-The Lake Herman Murders
1969 July 4th-The Blue Rock Springs Attack
1969 July 31st- Vallejo Times Herald Letter and
408 Cipher Page1 (solved)
1969 July 31st- Examiner Letter and
408 Cipher Page 2 (solved)
1969 July 31st - Chronicle Letter and
408 Cipher Page 3 (solved)
1969 July 31st-The Complete 408 Cipher
1969 August 4th- Debut of Zodiac Letter
1969 September 27th- The Lake Berryessa Attack
1969 October 11th-The Presidio Heights Murder
1969 October 13th-The Paul Stine Letters
1969 October 22nd-Call to Chat Show
1969 November 8th-The Dripping Pen Card and
340 Cipher (unsolved)
1969 November 9th-The Bus Bomb Letter
1969 November 28th-The Betsy Aardsma Murder
1969 December 16th-The Fairfield Letter
1969 December 20th-The Melvin Belli Letter
1970 Feb 21st- The Hood and Garcia Murders
1970 March 22nd-The Modesto Attack
1970 April 20th-"My Name is" Letter,
Cipher 3 (unsolved) and Bus Bomb Diagram
1970 April 28th-The Dragon Card
1970 June 26th-The Button Letter
Cipher 4 (unsolved) and Map
1970 July 4th-The Sleeping Bag Murders
1970 July 24th-The Kathleen Johns Letter
1970 July 26th-The Little List Letter
1970 Sept 6th-The Donna Lass Disappearance
1970 October 5th-13 Hole Postcard
1970 October 27th-The Halloween Card
1971 March 13th-The Los Angeles Letter
1971 March 22nd-The Pines Card
1974 January 29th-The Exorcist Letter
1974 February 14th-The SLA Letter
1974 May 8th-The Citizen Card
1974 July 8th-The Red Phantom Letter
1974 December 27th- Christmas Card
1978 April 24th-The 1978 Letter
1987 October 28th- The 1987 Letter
1990 December-American Greetings Card