The Unabomber, Ted Kaczynski, planted his first bomb in his hometown of Chicago in 1978. Thirty years later, Tribune investigative reporter Robert K. Elder has gained rare access to family photos and letters, and unpublished writings which contradict the Unabomber's public image as an eco-crusader. The feature will be published on Monday, but the Tribune shared an exclusive photo with Gapers Block; link after the jump.

This is a photo of Ted and David Kaczynski, taken in their Evergreen Park home in 1952.

Says Elder, "This is also a story about his brother, Dave Kaczynski, and Gary Wright, Ted's 12th target. Dave lost a brother in a very tragic, public way but formed a new, unlikely bond with Gary. Included in the story: family revelations about Ted's upbringing in Evergreen Park, the Unabomber's diary entries and news of a romance Kaczynski had in prison with a woman for 10 years via mail."