"He knew probably his entire life that he wanted to be in the military," Fran Carson said.
Petty Officer 1st Class Sean P. Carson enlisted in 1999 and was assigned to an explosive ordnance disposal unit.
Fran Carson said her son worried about her worrying when he was deployed, so he didn't tell her the details of what he did each day.
"I've found out so many wonderful things about my son the last three days," she said. "It's incredible for a mother to hear all those wonderful things. How brave he was. They said he was a warrior."
Sean Carson was one of seven Americans killed when a U.S. military helicopter crashed Aug. 16 during a firefight with insurgents in a remote area of southern Afghanistan.
Fran Carson said her son had a great sense of humor and always had a smile when he came home to visit while he was on leave.
"He was a wonderful son," Fran Carson said. "He was a wonderful father to his daughter."