DALLAS (AP) -- Federal investigators say the gun used to kill a U.S. immigration agent in Mexico has been traced to a Dallas-area man.
Agents of the U.S. Bureau of Alcohol, Tobacco, Firearms and Explosives arrested the man and two other suspected gun smugglers in Monday raids in Lancaster, Texas, a southern Dallas suburb.
ATF spokesman Tom Crowley is referring questions about further details to the U.S. Justice Department in Washington, D.C. The agency plans a news release.
U.S. Immigration and Customs Enforcement Agent Jaime Zapata was killed in the Feb. 15 attack at a roadblock in the central Mexican state of San Luis Potosi. Agent Victor Avila was wounded.