Williamson turned himself in to police shortly after midnight on June 19.
According to the Westmoreland Police Department's affidavit, officers arrived on the scene after witnesses reported shots fired in the Ridgecrest subdivision area.
Police arrived at Carter's home, and found Carter lying in the road in front of his home with several gunshot wounds.
Carter was taken to Sumner Regional Medical Center where he was pronounced dead.
“Several witnesses told police that Carter and Williamson got into a disagreement over the telephone concerning a female, according to the affidavit” said Jennifer Easton, Staff Writer in a Tennessean article Thursday, June 19, 2008.
“According to the witnesses, the suspect drove to the victim's neighborhood where the victim walked from his residence into the street toward the suspect at which time the witnesses state that the suspect opened his car door, exited the car, and began shooting the victim, reports the Tennessean.
According to reports, evidence on the scene indicated that approximately 14 shots were fired from a 40-caliber handgun with Carter being hit six times.
Police recovered the alleged murder weapon near the entrance of Ridgecrest subdivision on Clyde Wix Road in Westmoreland.
Williamson has been charged with first-degree murder.
Derek Williamson is scheduled to appear in Sumner County Court on July 16, and is being held in Sumner County Jail on a $750,000 bond.
Funeral services for Grady Travis Carter were held on Monday, June 23 at the chapel of Woodard Funeral Home in Westmoreland.
Complete obituary information for Grady Travis Carter appears on page 3C of this week's paper.