However , these convictions were later overturned on a federal appeal .
In 2004 , in Wisconsin , he plead guilty to six felony counts of arson and vandalism , as well as trespassing , and sentenced to 21 years .
These convictions were later overturned on a federal appeal .
In 2004 , in Wisconsin , he plead guilty to six felony counts of arson and vandalism , as well as trespassing , and sentenced to 21 years .