Presbyterian College head football coach Harold Nichols announced the addition of Klay Killingsworth as the program's assistant football coach July 1, 2009. After a year with the linebackers, Killingsworth will make the move to the defensive line in 2010.

During the 2009 campaign, Killingsworth's group was the youngest among any of the positions for the Blue Hose. His unit accounted for three of the top six tacklers on the team, including standout Derek Brown, who was second on the team with 29 solo tackles. The group really started coming together in the second half of the season, ending the year by helping hold Gardner-Webb to 21 points in the season finale.  

"Klay is an outstanding young coach," Nichols said. "He has a wealth of collegiate and high school experience. Klay will be a valuable recruiter on staff. He and his lovely wife will be a great addition to the PC family."

Killingsworth, who was on the PC staff in the late 1990's under Daryl Dickey and Tommy Spangler, makes his return to the school to coach the linebackers.

Killingsworth comes to PC after spending two years at North Paulding H.S., in Dallas, Ga. There, he was the defensive coordinator and an assistant head coach. Prior to his time at North Paulding, Killingsworth was the defensive line coach at Worth County H.S.

He also spent time at Gainesville H.S. and Cherokee H.S., respectively, as the linebackers and defensive line coach.

After leaving PC in June '99, Killingsworth headed to Washington & Lee University in Lexington, Va. There, he was the defensive line coach while also being named the assistant wrestling and assistant strength and conditioning coach.

In 2001, he accepted the assistant football coach position while being in charge of the defensive line unit at Columbia University.

After one year, he took the position of assistant dean of recreation at Hidden Lake Academy.

He then turned to the high school ranks and Cherokee H.S. in July 2003.

Killingsworth earned his bachelor degree in recreation management from West Georgia in 1998. In 2005, he was inducted into the West Georgia Hall of Fame.