Army Specialist Henry Mayfield Jr., 23, was killed in the attack at Manda Bay Airfield by Al-Shabab extremists. Two American contractors with the Department of Defense were also killed.
Mayfield's family in Hazel Crest, Illinois, plans to head to Dover Air Force Base Monday to bring their son's body home.
The knock at the door came Sunday afternoon, and the Mayfield family was told their son was killed in the attack. They never thought speaking to him just days ago would be the last time.
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His mother, Carmoneta, said she was always worried when he was deployed, but felt he was a little safer in Kenya, she never imagined what would happen.
Part of a blended family, Mayfield leaves behind many loved ones, including eight siblings.
Mayfield's aunt, Tawanna Cottenfinner, delivered a statement from his family Monday morning.
"At this time, we would like to say thank you for all your kind words that we have received. The loss of a child is devastating no matter how it occurs. This was a senseless act of violence that has changed our lives forever. Our son was a great big brother, cousin and above all he was an awesome person. We will miss him tremendously. He brought joy to everyone he came into contact with. We will miss that joy. At this time, we are asking for time to grieve in privacy."
Mayfield was a graduate from Hillcrest High School in 2014.
"Henry came to our school from Bogan High School during his junior year," said Hillcrest Principal Dr. Renee Simms. "He graduated in 2014 and we are very proud to have been able to be a part of his life, even if it was only for a short amount of time. Henry will be missed by many of our alumni, staff, and community members. We are beyond grateful for Henry's service to our country, and we admire him for his bravery. We will look back fondly on the memories and moments we were fortunate enough to share with him at Hillcrest High School. Our deepest condolences go out to his family and friends."
Mayfield Jr. went on to Northern Illinois University to study business, and when school got too expensive, he joined the Army two years ago to help pay for school. His family worried when he was deployed to Kenya in October, but he always assured them that he was OK..
Neighbors have been coming by the Mayfield home all day, to offer their condolences. Even Hazel Crest officials are reaching out to help this hero's family.
"It's breaking my heart, you see people, I just saw him this summer. I don't have words to say, it's just breaking my heart," said Hazel Crest Village Clerk Isaac Wiseman.
His family says he was an awesome young man with a lot of potential and one that will be missed by many that knew him.
"Outstanding young man, always polite, outstanding young man," Isaac said.
The family plans to bring their son home to Chicago Tuesday and start the process of planning his funeral.
The attack on the Manda Bay Airfield was the al-Qaida-linked group's first attack against U.S. forces in the East African country, and the military called the security situation "fluid" several hours after the assault.
The attack on the compound "involved indirect and small arms fire. After an initial penetration of the perimeter, Kenya Defense Forces and U.S. Africa Command repelled the al-Shabaab attack," said the Africom statement. "Reports indicate that six contractor-operated civilian aircraft were damaged to some degree. Manda Bay Airfield is utilized by U.S. forces whose missions include providing training to our African partners, responding to crises, and protecting U.S. interests in this strategically important area."
Al-Shabab claimed that there were 17 U.S. casualties, nine Kenyan soldiers killed and seven aircraft destroyed. The U.S. Africa command dismissed the al-Shabab claims as exaggerated and said U.S. and Kenyan forces repelled the attack.
The Associated Press contributed to this report.