In 1987, a bomb left outside a computer firm in Utah injured the company's vice president. A secretary at the firm described a man in a hooded sweatshirt and sunglasses she had seen outside the building prior to the explosion. Her description formed the basis for the iconic sketch. The hooded sweatshirt is among the 51 different personal items belonging to Kaczynski now being offered for auction by federal authorities.

The auction, which began on-line May 18 and continues to June 2, is being conducted by the government's General Services Administration on behalf of the U.S. Marshals. Kaczynski's multiple pairs of sunglasses are among the items for sale and shown in photos released by the Marshals. The items were found in Kaczynski's remote Montana cabin after his arrest in 1996. "The U.S. Marshals Service has been given a unique opportunity to help the victims of Theodore Kaczynski's horrific crimes," said U.S. Marshal Albert Nájera of the Eastern District of California. "We will use the technology that Kaczynski railed against in his various manifestos to sell artifacts of his life. The proceeds will go to his victims and, in a very small way, offset some of the hardships they have suffered."

Born and raised in the Chicago area, Kaczynski is seen in these personal photos, which are up for auction, alone and with his brother David and his father. The auction will be on-line at www.gsauctions.gov.

Kaczynski, a child prodigy, entered Harvard University in 1958 at age 16. After earning a PhD in mathematics at the University of Michigan, he became an assistant professor of mathematics at the University of California-Berkeley.

After poor ratings from undergraduates, Kaczynski resigned his position at Berkeley in 1969. He moved in with his parents in suburban Chicago. By 1973, he was living alone in a cabin outside Lincoln, Montana. The auction includes personal identification documents from Illinois and Montana, including his birth certificate, and driver's licenses.

Kaczynski built the cabin by hand. His tools are for sale, but U.S. Marshals said no items used in the construction of bombs would be included in the auction. Proceeds from the auction will be used to compensate his victims. Kaczynski is believed to have committed at least 16 bombings across the United States, injuring 23 people and killing three.

Kaczynski lived a spartan life in the cabin, which had no electricity or running water. Seen here are some of the supplies found after his arrest and offered for auction.

Kaczynski hunted for food with bows and arrows while living in Montana. His weapons are available at auction.

Federal authorities found thousands of pages of writing in Kaczynski's cabin when it was searched. Kaczynski read widely in politics and sociology, and had come to believe that industrial civilization had to be destroyed by violence. This lot is one of several lots of Kaczynski's handwritten documents that are being offered for sale.

The FBI found coded documents and code keys among Kaczynski's documents, which when decoded contained admissions of involvement in, and discussions of the specifics of, many of the bombings attributed to the Unabomber. The documents and code keys, seen here, are available at auction.

Kaczynski composed a 50-page, 35,000 word manifesto called "Industrial Society and Its Future." He mailed it to major media outlets anonymously and insisted it be published without any changes. He said that if this demand was met, he would stop his bombing spree. The handwritten draft of the so-called "Unabomber Manifesto" is available at auction.

Kaczynski typed up the manifesto on this typewriter, which is available at auction, before mailing copies to such outlets as the New York Times and the Washington Post.