An American who survived the 9/11 terror attack has been identified as one of at least 14 people killed in the terror attack at 14 Riverside Drive, Nairobi.

Jason Spindler, the global managing director of I-DEV International who was based in the Kenyan capital, was killed in Tuesday’s attack according to his family and officials in Kenya.

Spindler’s mother Sarah Sandler told NBC News that her son “was trying to make a positive change in the third world in emerging markets.”

Jonathan Spindler, Jason’s brother, announced the family’s tragic loss via Facebook.

“It is with a heavy heart that I have to report that my brother, Jason Spindler passed away this morning during a terror attack in Nairobi, Kenya. Jason was a survivor of 9/11 and a fighter. I am sure he gave them hell!” Jonathan’s post read.

“There are no words to describe how our family is feeling but I can say…Jason Spindler you are and will always be an amazing son, brother, uncle. Rest in peace – we miss you dearly.”

Spindler’s friend Chris Schroeder remembered him in a Facebook post as “one of those rare men who was loved by pretty much anyone he touched in Kenya and around the world.”

Schroeder said Spindler, “chose a life of hope and inclusion. I am grateful to have known and learned from him.”

The San Francisco-based company I-DEV International confirmed Spindler was killed, and nine others in its Nairobi office safely evacuated.

According to colleagues, Spindler was having lunch at the upmarket Dusit D2 hotel complex in Nairobi when the attack happened.

I-DEV is based at Metta, a space for entrepreneurs that is located at the 14 Riverside office complex in the Belgravia building’s sixth floor.

The Metta Africa head of community, memberships, and operations Essie Mwikali said there were 45 people at the space when the attack happened.

Spindler joined the Peace Corps after the Sept. 11 terror attacks and was a graduate of NYU Law and the University of Texas at Austin. He was also the recipient of grants from the Bill and Melinda Gates Foundation and the Clinton Foundation

The Kenya Tech community, friends, and colleagues of Jason Spindler have been sending their condolence messages on Twitter.

We have sampled a few: