MILWAUKEE, Wisconsin (AP) -- A man who called himself "Dr. Chaos" online was sentenced Wednesday to seven years in federal prison for hacking into computers and causing power failures in northeastern Wisconsin.
Joseph D. Konopka, 29, already is serving a 13-year federal prison sentence for pleading guilty in 2002 to chemical weapons possession for storing cyanide near a Chicago subway.
The former computer systems administrator pleaded guilty in August to 11 felonies, including conspiracy, arson, creating counterfeit software and interfering with computers in Wisconsin.
Prosecutors said Konopka, formerly of Hobart, and an "anarchist group of boys" called Realm of Chaos were responsible for 28 power outages affecting 30,000 customers and 20 other service interruptions in 1999. Damage was estimated at $800,000.
Six juveniles were charged in various Wisconsin counties in 2002 with aiding Konopka.
Konopka also has been ordered to pay $436,000 in restitution and spend three years on supervised release after prison.