One of two deputy U.S. marshals shot Tuesday in St. Louis has died of his injuries, making him the third federal agent killed in the line of duty in the last several weeks.

John Perry, 48, a deputy U.S. marshal, served almost 10 years with the force before being shot Tuesday while trying to capture a fugitive. The fugitive, Carlos Boles, was killed in a shootout with authorities. Another deputy marshal shot Tuesday is in fair condition, and a St. Louis police officer was treated and released.

In a statement issued Wednesday morning, Attorney General Eric H. Holder Jr. said Perry’s death is “yet another solemn reminder of the dangers that United States Marshals confront on a daily basis. These brave men and women routinely put their lives on the line in their work to combat crime and gun violence, to apprehend dangerous criminals, and to help bring fugitives to justice. Yesterday’s actions by two Deputy U.S. Marshals and local police officers in St. Louis reflect the dedication and courage that defines America’s law enforcement community.”

In February, Deputy U.S. Marshal Derek Hotsinpiller, 24, was killed while serving an arrest warrant in West Virginia. The day before, Immigration and Customs Enforcement Special Agent Jaime Zapata, 32, was killed in Mexico.

“Their service, their courage, and their willingness to risk their own lives to protect the safety of others will not be forgotten,” Holder said of Perry and Hotsinpiller. “As we mourn this devastating loss, we also reaffirm that the Justice Department’s commitment to supporting our law enforcement partners - and to ensuring officer safety - will continue to be a top priority.”

The deaths highlight what authorities say are the heightened risk to federal investigators who are confronting increasingly violent fugitives, drug traffickers and other criminals.

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