The Central Intelligence Agency (CIA) has more than a million people following (1,064,928 to be exact) their Twitter account, @CIA. On Wednesday afternoon, they utilized their huge audience to do one thing and one thing alone: honor Greg Wright, a former Marine and CIA officer who was killed while saving the lives of his colleagues when they were attacked after a meeting in a Middle Eastern country in 2005.

It’s part of the agency’s “Remembering CIA’s Heroes” series, which has set out to honor those employees “who have made the ultimate sacrifice”.

This is how they put it on their website, before Wright’s tribute:

Currently, there are 113 stars carved into the marble of the CIA Memorial Wall. The wall stands as a silent, simple memorial to those employees “who gave their lives in the service of their country.” The CIA has released the names of 80 employees; the names of the remaining 33 officers must remain secret, even in death.

These are the tweets that together tell the late hero’s tragic story: