From Mississippi's Cottonmouth blog:
Reports out of Calhoun City this morning indicate that the Wayne Harris who shot and killed Chris McGonagill last night in Calhoun County is the same Wayne Harris who was pardoned by Gov. Barbour a year ago. Harris had been convicted of sale of marijuana, which made it illegal for him to carry a gun.
Barbour's pardon cleared the way for Harris to legally possess a firearm, which he apparently used last night to shoot and kill the host of a barbecue Harris was attending.