Here is the list of agents who have died on duty in the Tucson Sector:

• Nicholas Ivie, Oct. 2, 2012, shot by unknown assailants.

• Brian A. Terry, 2010, shootout with border bandits.

• Michael V. Gallagher, 2010, crash.

• David Webb, 2006, crash.

• Nicholas Greenig, 2006, crash.

• George DeBates, 2004, crash.

• Alexander Kirpnick, 1998, shot by drug smugglers.

• Victor Ochoa, 1983, crash.

• George Pringle, 1940, crash.

• Lon Parker, 1926, killed in shootout with liquor smugglers.

• William McKee, 1926, shot by liquor smugglers.

Ivie is 11th to die

Agent Nicholas Ivie became the 11th agent to die on duty in the Border Patrol's Tucson Sector, according to Arizona Daily Star archives.

Ivie, 30, was shot along with a fellow agent near Naco early Tuesday.

Both agents were assigned to the Naco station, which was recently renamed to honor Brian Terry, the agent most recently killed in Arizona before Ivie.

Terry was killed in a shootout with border bandits in December 2010 near Nogales. The shooting was later linked to Fast and Furious, the federal gun-smuggling probe.

Michael V. Gallagher, 32, was killed on duty September 2010 when his vehicle was struck by a drunken driver while patrolling on the Tohono O'odham Nation. Before that, Agent David Webb died in a rollover crash west of Tucson in November 2006. In March 2006, Agent Nicholas Greenig, 28, died when a car he was in hit a cow on Arizona 86 near Why, 110 miles west of Tucson.

Nationwide, there have been 116 Border Patrol agents killed in the line of duty since 1919, according to the Officer Down Memorial Page website.

Prior to Terry's slaying, 12 years had passed since an agent here was fatally shot. In 1998, agent Alexander Kirpnick was shot by drug smugglers in Potrero Canyon, west of Nogales.

Arizona Daily Star