Speight pleaded guilty to three counts of capital murder, one count of attempted capital murder of a police officer and five firearms-related charges.
A former security guard, Speight surrendered peacefully on January 20, 2010 after an all-night manhunt in the woods near the home that he shared with his sister, her husband and their two children. He was unarmed and wearing a bulletproof vest when he surrendered.
Prosecutors said Speight had a history of mental problems and was obsessed with the idea that his sister, Lauralee Sipe, was trying to kick him out of the house on 34 acres the two inherited when their mother died in 2006.
Was Sent to Mental Hospital
In June 2010, Speight was committed to a state mental hospital after a court-appointed psychologist found him too mentally ill to help his attorneys in his trial defense.
Speight's victims included his sister Lauralee and her husband Dwayne Sipe, both 38; their son Joshua, 4; Lauralee's daughter Morgan Dobyns, 15; Morgan's friend Emily Quarles, 15; Emily's boyfriend, Ronald "Bo" Scruggs, 16; and Emily's parents, Karen and Jonathan Quarles, both 43.
Speight also pleaded guilty to shooting at a police helicopter, which was forced to make an emergency landing.
After his arrest, investigators found a cache of weapons and explosives at Speight's home.
Photo: Mug Shot