In 1984 he was convicted of membership in the Jewish Underground of the early 1980s, and sentenced to three years in prison for his part in the assassination of Palestinian mayors.
The settlements Havat Gilad, Kedumim, Itamar, Yitzhar, Ma'aleh Levona, Shilo, Adei Ad, Nokdim, Bat Ayin, Neguhot, Kiryat Arba, Beit Haggai, Carmel and Susya are considered as possible threats to nearby Palestinians.