David Maland, 44, was a military veteran who worked security duty at the Pentagon during the Sept. 11 attacks, his family said.

A U.S. Border Patrol agent killed during a traffic stop near the Canadian border worked security duty at the Pentagon during the time of the Sept. 11 attacks.

It's been two days since U.S. Border Patrol Agent David Maland was killed in the line of duty. The Federal Bureau of Investigation said Maland was killed during a traffic stop on I-89 in Coventry, Vermont.