Property records show that in 1971 Mr Kaczynski, along with his brother David, bought 1.4 acres of land outside of Lincoln, in western Montana.

BBC: Profile: Theodore Kaczynski

Joint agent David Hebditch added that a remaining 380 acres of the estate, including farmland, was still to be sold.

BBC: Trevarno Estate's manor house is sold

In March of this year, direct rule minister David Hanson had been wrestling with a decision about 96 acres at Ballee in Ballymena.

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