Sources tell WCAX News that a third person may have been involved with suspects that killed a Border Patrol agent in Vermont.

David "Chris" Maland was a U.S. Border Patrol agent and a military veteran who worked security duty at the Pentagon during the time of the Sept. 11 attacks, according to his family

David "Chris" Maland, the U.S. Border Patrol agent allegedly killed by a German national during a traffic stop near the Vermont-Canada border on Monday, was an Air Force veteran.

COVENTRY, Vt. (TNND) — A U.S. Border Patrol agent shot and killed during a traffic stop in northern Vermont Monday was a veteran of the U.S. Air Force who worked security at the Pentagon during the Sept. 11 attacks, according to his family and officials.

The federal officer killed while on duty near the Canadian border has been identified as a U.S. Air Force veteran who provided security at the Pentagon during the Sept. 11 attacks.

A U.S. Border Patrol agent who was killed during a traffic stop in Vermont near the Canadian border was a military veteran.

Agent David “Chris” Maland died in a shooting following a traffic stop, the FBI said. A second person killed in the incident was a German national in the country on a current visa, authorities said.

Border Patrol agent killed in Vermont was a military veteran who worked at the Pentagon during 9/11, family says

CONCORD, Vt. (AP) — Border Patrol agent killed in Vermont was a military veteran who worked at the Pentagon during 9/11, family says.

The US Border Patrol agent murdered during a traffic stop with a migrant in Vermont was an Air Force veteran who survived the 9/11 attack on the Pentagon, his family said. David “Chris” Maland, 44, died Monday afternoon after a shootout with a German national on Interstate 91 about 20 miles from the Canadian border,

The agent was identified as David “Chris” Maland, 44. Maland was a Blue Earth native and a graduate of Fairmont High School.