WATCH: Touching Tribute for Ryan Knauss, one of the Marines killed in Afghanistan

U.S. Army Staff Sgt. Ryan Knauss was one of the 13 U.S. Service Members tragically killed in Afghanistan.

Wayne Knauss said about his grandson “He grew up in a Christian home, attended Berean Christian school through 8th grade and spent, 4 years at Gibbs High.”

“A motivated young man who loved his country. He was a believer so we will see him again in Gods heaven,” he added.

Stepmother Linnae Knauss said “He was a super-smart hilarious young man,” and looking forward to coming home.

TN Ro. Tim Burchett wrote “Ryan gave his life outside that airport helping people he didn’t know get to safety. This is what true heroism looks like and Ryan’s sacrifice will never be forgotten. The Knauss family is in my prayers.”