How did a gun belonging to a former assistant special agent in charge at the Bureau of Alcohol, Tobacco, Firearms and Explosives end up at a crime scene in Mexico where five died, including a Mexican beauty queen?
That's the question being asked by congressional investigators and ATF officials in Phoenix.
A FN Five-Seven semi-automatic pistol, a high powered handgun originally restricted to military and law enforcement customers, was recovered by Mexican police at the scene of a Nov. 23 shootout between the Sinaloa Cartel and the Mexican military.
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