Andrew Pochter memorial at National Cathedral

A somber memorial was held Friday at the National Cathedral in northwest Washington. People gathered to remember Andrew Pochter, the 21-year old from Chevy Chase who was killed during riots in Egypt at the end of June.

Pochter was spending the summer there teaching English to elementary school students, and improving his Arabic. Among the many in attendance was Mohamed Tawfik, the Egyptian ambassador to the U.S.

"Andrew was and will always be my little brother,” said his sister Emily Pochter. She said they’ll always remember “how much he cared about the world."

Emily Pochter read a letter Andrew himself wrote in Alexandria, Egypt a month ago, to a 12-year-old he mentored at a summer camp for abused and neglected children here at home.

She then laid her hands on her brothers casket.

The 21-year-old spent his spring semester studying in Amman, Jordan, as part of the AMIDEAST Education Abroad Program and was teaching in Egypt before returning in the fall to Kenyon College in Ohio.

He majored in religious studies, was active in Hillel House - the campus center for Jewish life - and was a member of the rugby club and an organizer for the Middle Eastern Students Association, the college said.

"He may have not have had much time to change the world but he changed all of us, who were given the gift of knowing him,” says David McIlhiney of St. Paul's Memorial Church.