LOGANVILLE -- Major Walter David Gray spent years dreaming about the Air Force.
"When he was in school, even in grammar school, he always talked about being in the air force," said Gray's father, James Gray.
"It was what he wanted to do and he was happy."
The 38-year-old air liasion officer was killed in a suicide bomb attack Wednesday. According to the Department of Defense, Major Gray was among three troops killed in Kunar Province, Afghanistan.
Major Gray and his wife Heather have three children, ages three, five and seven.
Gray had nearly 20 years of service in the Air Force, but this was his first deployment.
"There wasn't a day that goes by that I wouldn't worry about him," Gray's father said. "He would call me from Afghanistan once a week. He couldn't talk long, [but] he'd tell me he was ok."
Major Gray will be buried in Arlington National Cemetery. His family will hold a memorial service in Loganville.