Gun at Mexican Crime Scene Sold by ATF Agent

I did not know the feds were doing retail

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.