Also known as the "Spam King," Davidson sent hundreds of thousands of unsolicited email messages from his home base in Bennett, Colo.
In June 2007, Davidson was indicted by a federal jury for violating the CAN SPAM Act. He pled guilty to the charges in December 2007. After being sentenced soon after to 21 months a minimum-security prison camp, Davidson escaped on July 20, 2008.
Along with his prison sentence, Davidson had to forfeit his personal property and pay more than $700,000 in fines.
On July 24, Davidson shot and killed his 29-year-old wife Amy Lee Ann Hill and their 3-year-old daughter. Also involved in the incident were a 7-month-old boy who was unhurt and a teenage girl who was shot in the neck but escaped by running to a neighbor's home. She's now being treated at the University of Colorado Hospital in Denver.
"What a nightmare and such a coward," U.S. Attorney Troy Eid said. "Davidson imposed the 'death penalty' on family members for his own crime."
Davidson's last spamming operation was called Power Promoters.