Bulloch County Superior Court Judge Gates Peed sentenced a man Wednesday to 20 years in prison for beating a woman with a glass mug after smoking synthetic marijuana, known as “spice.”Thomas Jason Browning, 24, of Brannen Road, admitted committing the crime when Bulloch County deputies first arrived at the scene Sept. 11, 2011, according to testimony from Bulloch County sheriff’s Investigator Walter Deal.Ogeechee Judicial Circuit Assistant District Attorney Michael Muldrew said the state recommended Peed hand down the maximum sentence of 20 years to serve for the aggravated battery charge, but Browning’s attorneys asked for a sentence of one year, with 19 years probation.After hearing testimony from witnesses, Peed gave Browning 20 years to serve.When deputies responded to Browning’s home after the attack, they found him covered in blood. “He said ‘This is my fault, I hit her, I hurt her,’” Muldrew said.Amber Fields, 21, of Swainsboro, was airlifted to Memorial University Medical Center in Savannah for injuries sustained in the attack. She suffered broken facial bones, a fractured skull, shattered nose and other injuries after Browning “bashed her head in” with a heavy glass mug, he said.